GPT Image 2 / プロンプト特集 第二弾

Use the attached illustration as the main visual. Do not alter the character, face, or art style in any way.

Create a vertical music festival poster (portrait, 2:3 ratio) with a dark, cinematic atmosphere.

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LAYOUT:
- The illustration fills the full poster as background
- The character's face must be clearly visible — keep the center of the image free from heavy overlays
- Dark gradient overlay at the very top (behind title text only) and at the bottom (behind artist info only)
- The middle zone where the face appears should remain mostly unobscured
- The illustration should occupy as much of the poster as possible — minimize the text footprint
- The illustration must bleed into the catchcopy zone — the image should remain visible and partially unobscured all the way down through [ここにキャッチコピー最終行] — only the very bottom (artist name and date line) needs a solid dark background
- The bottom text block must be kept as small and tight as possible — prioritize illustration space over text size
- All text in white

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TOP AREA:
Title logotype — "天ROCKFEST2026":
Ultra-bold slab or condensed gothic hybrid font, heavily distressed with uneven ink coverage, stamp-pressed texture, roughened edges as if screen-printed on a worn surface — think overinked woodblock print meets industrial stencil. Characters should feel physically heavy and slightly irregular, NOT clean digital type. The kanji "天" and Latin "ROCKFEST2026" must read as one unified logotype with consistent damage texture throughout.
Color: solid white with ink-dropout gaps revealing the dark background beneath.

Below the title logotype:
Small spaced text (clean, thin): The Summer Camp
Thin horizontal rule with small star or diamond ornaments at center
Very small all-caps text: SUB HEADLINER

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BOTTOM AREA:
The entire bottom text block must occupy no more than 18% of the total poster height — keep every text element as compact and tight as possible.

The dark gradient at the bottom should begin only below [ここにキャッチコピー最終行] — the catchcopy lines sit directly over the illustration with only a very subtle dark veil, not a solid overlay. The solid dark background applies only to the artist name and date line at the very bottom.

Line 1 — very small size, wide letter-spacing, distressed display font — worn ink texture and rough edges, consistent with the title logotype:
[ここにキャッチコピー1行目]

Line 2 — small Japanese mincho/serif, heavy weight, clean (no distress):
[ここにキャッチコピーのメインフレーズ（最も印象的な一文）]

[Generous vertical margin between Line 2 and Line 3]

Line 3 — small size, wide letter-spacing, thin weight, clean:
[ここにキャッチコピー最終行]

Thin horizontal rule with small diamond ornament at center

Line 4 — very small, wide letter-spacing:
[ここにアーティスト名（日本語）]

Line 5 — very large display font, elegant tracking, distressed weight — the dominant visual anchor of the entire bottom area:
[ここにアーティスト名（ローマ字）]

Line 6 — medium size, clearly legible, wide letter-spacing, same distressed weight as the title:
DAY [ここに日程番号] · [ここに日付（例：7.25 SAT）]

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FRAME:
Add a decorative border around the entire poster:
- Double-line border — outer line thick and bold, inner line thin
- Four corner brackets in an L-shape with a small bolt/rivet at each corner tip and a diamond ornament at the inner corner intersection
- Small lightning bolt or zigzag ornament centered on the left and right edges
- The frame should feel industrial and heavy — aged metal or worn print registration marks
- Color: white, consistent with all other text elements

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TYPOGRAPHY DIRECTION:
Japanese editorial poster aesthetic. Mix of heavily distressed display type for the festival title and Line 1, with clean high-contrast mincho for the main catchcopy. No drop shadows anywhere. No generic sans-serif. Think luxury concert merch meets underground zine meets woodblock print.

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STYLE:
Cinematic. Deep blacks. Gritty noise/grain texture overlay across the entire poster. No borders from digital framing. High contrast. The overall mood is dark, heavy, and uncompromising.

Create a white t-shirt product mockup (flat lay, front view, plain white background).

The t-shirt design uses black line art only. No color fill. No shading. White shirt throughout.

Illustration style: hand-drawn with a soft pencil or crayon. Lines are slightly wobbly and uneven, with inconsistent pressure — some strokes faint, some darker. Outlines do not always close perfectly. The overall impression is a casual, childlike sketch — imperfect but charming. Minimal detail. No clean vector lines. No digital precision.

The t-shirt has four printed zones:

TOP CENTER:
Reproduce the festival logo from the first attached image exactly as-is — do not alter the font, layout, or graphic style in any way. Place it prominently at the top center of the shirt. Make it large enough to read clearly. Do NOT apply the hand-drawn or yuru-kyara style to this logo.

TOP RIGHT:
A hand-drawn jagged speech bubble (spiky, explosive edges — like a shouting manga effect), slightly smaller than the character illustration. Inside the bubble, write "【ここにセリフを入力】" in clumsy, uneven hand-lettered characters. The bubble and text should feel comic and energetic.

MIDDLE:
Redraw the character from the attached image in a loose, casual, yuru-kyara style — simplified, childlike, charmingly imperfect. Use the attached image as the sole reference for pose, expression, and content. Draw the character smaller — occupying no more than 40% of the shirt's height. Leave generous white space around the figure. The speech bubble may overlap with the top portion of the character illustration. Do not shrink the character to avoid overlap.

BOTTOM:
The artist name "【ここにアーティスト名を入力】" hand-lettered in uneven, shaky characters — as if written slowly and clumsily by hand with a pencil.

Keep all elements well-spaced and balanced. Clean, minimal, no background decoration.

TWO CHARACTER ILLUSTRATIONS are provided as input.
Generate a single unified poster image.

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ILLUSTRATION (occupies approximately 75% of the poster):

[Character Analysis — Both — Critical First Step]
Before generating anything, deeply analyze each character:
- What is this character's core emotional energy? (explosive, cold, melancholic, fierce, playful, transcendent)
- What are they doing when they are most themselves? What does their peak state look like?
- What visual language surrounds them in the original — motion lines, flowers, geometric fragments, ink, light, decay?
- Catalog: clothing, accessories, weapons, held objects, color palette, art style, symbolic elements
- Weapons and held objects: only reproduce what is explicitly present in the original illustration. Do not invent or add weapons, tools, or objects that do not appear in the source. If a character does not carry a weapon in the original, they do not carry one here.
- Distill each character into one sentence: "This character is someone who ___"

These analyses become the foundation of everything that follows.

[World Fusion]
- Adopt the art style of the quieter character as the base
- Allow each character's surrounding visual language to bleed into the unified scene — not as decoration, but as extension of their inner state
- Original graphic elements (glitch fragments, flowers, geometric shapes, ink, light flares) may appear around the character they belong to
- The environment is a summer festival — open sky, crowd blurred behind — but each character transforms their immediate space according to their nature

[Face-Off — Character at Full Intensity]
This is not a casual encounter. Both characters are at peak expression of who they are.

Gaze — non-negotiable rules:
- Both characters look directly at each other. Eye contact is locked. This cannot be broken.
- The gaze may be delivered from straight-on or from the corner of the eye — but the eye contact itself must be clear and intentional. A sideways glance is acceptable only if it still lands on the other character with full weight.
- Do not let either character look vague, unfocused, or blank. Every gaze must have intent behind it.

Expression — per character, based on personality analysis:
- If the character's nature is expressive, fierce, or energetic: give them an expression at full volume — a grin that means something, open intensity, the face of someone who wants this
- If the character's nature is cool, reserved, or stoic: do not render neutral as blank. Render it as contempt. Heavy-lidded eyes aimed at the other. A gaze that says: I have already decided what you are. The face of someone who does not need to perform dominance because they already have it.
- If the character's nature is mysterious or ambiguous: give them an expression that withholds — almost a smile, almost a threat, something the viewer cannot fully read

There is no acceptable version of this image where either character looks passive, bored, or unaware. Both are fully present and fully in it.

Each character must be rendered at the height of their own narrative:
- If fierce or combative: carry that energy in stance, gaze, the way the body is held
- If cold or disdainful: full contempt directed at the other — not softened
- If emotional or expressive: emotion at full volume
- If mysterious or transcendent: slightly outside the frame's reality

Both characters must be in active offensive posture toward each other:
- Weapons raised or extended only if present in the original
- Body weight forward or braced — ready, not waiting
- The energy is kinetic — the moment before something happens

[Composition & Physical Connection — Critical]
- Chest-up to three-quarter framing — camera tight, no excessive empty space
- One character left, one right — angled toward each other
- One point of physical connection or near-contact, using only what each character actually has:
  - If both carry weapons: weapons crossing at center
  - If one carries a weapon: it extends toward the other's space; the other responds with body or hand
  - If neither carries weapons: forearms or hands meeting, one reaching across, shoulders or arms grazing
- Do not invent objects for contact
- The contact point sits at or near center frame — visual anchor of the composition

[Visual Effects — Character-Specific]
- Each character surrounded by effects drawn from their original illustration's visual language
- Flowers, petals, geometric fragments, ink runs, light leaks, glitch artifacts, particle scatter
- Organic to that character — never arbitrary
- No manga speed lines, speech bubbles, screen tone, or explicit comic conventions

Anatomical integrity is non-negotiable:
- Correct body structure at all times — correct fingers, hands, arms, joints in plausible positions
- Effects permitted only in surrounding space — never distorting or replacing body parts
- If an effect causes anatomical ambiguity, remove the effect

[Setting]
- Bright outdoor summer festival — blue sky, strong sunlight, crowd and stage softly out of focus
- Background secondary — characters and their atmosphere dominate

[Color & Rendering]
- Vibrant, saturated — no muted or nostalgic tones
- Each character's color signature at full intensity
- The image feels alive

[Design Fidelity]
- Core identity preserved: silhouette, key colors, signature accessories
- Quality of finished work takes priority over exact reproduction

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POSTER OVERLAY TEXT:

TOP AREA:
Title logotype — "天ROCKFEST2026":
Ultra-bold slab or condensed gothic hybrid font, heavily distressed, stamp-pressed texture, roughened edges. Kanji "天" and Latin "ROCKFEST2026" as one unified logotype. Color: solid white with ink-dropout gaps. Maximum width: 70% of poster width.

Below title:
- Small spaced text (clean, thin): The Summer Camp
- Thin horizontal rule with star or diamond ornaments at center
- Very small all-caps: SPECIAL COLLABORATION

BOTTOM AREA (no more than 18% of total poster height):
Thin horizontal rule with small diamond ornament at center

Handwritten scrawl — rough and aggressive, as if written with a marker or brush in one fast motion — imperfect, energetic, slightly crooked. Not calligraphy, not clean lettering. Raw and spontaneous:
「ここにキャッチコピーを記入（例：一番ロックなのは、私だ！！！）」

Line 1 — very small, wide letter-spacing:
「アーティスト1の日本語名」 × 「アーティスト2の日本語名」
（例：輪廻タヲ × 歪み歪み）

Line 2 — very large display font, distressed weight, equal visual weight:
「アーティスト1のローマ字名」 × 「アーティスト2のローマ字名」
（例：RINNE TAO × HIZUMI YUGAMI）

FRAME:
- Double-line border — outer thick, inner thin
- Four corner brackets: L-shape, bolt/rivet at tip, diamond at inner intersection
- Small lightning bolt centered on left and right edges
- Color: white

TYPOGRAPHY:
Distressed display for title. Clean high-contrast mincho for supporting text. No drop shadows. No generic sans-serif.

STYLE:
Summer daylight. Open energy. Subtle grain overlay. High contrast. White text over bright illustration.