画像生成プロンプトの書き方（Image Prompt Writing）

Here's a prompt set for Biscuit. I assumed a soft, painterly picture-book style since you didn't name one. Swap it in the Style layer if you want something else.

Short prompt

A fluffy orange tabby cat sitting on a lighthouse balcony at sunset, seen from behind and slightly to the side, looking out at the sea. Warm children's picture-book illustration, portrait orientation.

Detailed prompt

A fluffy orange tabby cat with a thick, soft coat and darker orange stripes sits calmly on the iron railing-side floor of a lighthouse balcony, seen from behind at a three-quarter angle, with one ear turned toward the viewer and its tail curled around its paws. It gazes out over the sea. Setting: a white lighthouse with a red-trimmed balcony rail, a calm ocean below, a few small waves, and distant gulls, at sunset. Composition: vertical full-page illustration, the cat in the lower third on the left, a large expanse of sky and sea above and to the right, the horizon placed about one third from the top. Light: warm golden sunset light from the front, a rim of orange glow along the cat's fur, long soft shadows on the balcony floor. Style: warm, hand-painted children's picture-book illustration, soft gouache and watercolor textures, gentle rounded shapes, clear and friendly. Palette: glowing oranges, peach, and soft pink sky fading to deep teal-blue sea, with cream and red accents on the lighthouse. Mood: peaceful, wistful, cozy.

Variations (one change each)

1. Composition: a wider view showing the whole lighthouse tower rising up the page with Biscuit tiny on the balcony, for a sense of scale.
2. Light: the sun just touching the horizon, with the lighthouse lamp beginning to glow and the first stars in a purple-blue upper sky.
3. Style: flat vector-style illustration with simple shapes, a limited palette, and a subtle paper-grain texture.

If the result is off

• Cat doesn't look like Biscuit or looks too realistic: edit the Style layer ("stylized, rounded, cartoon proportions") and the cat's details (add "big round eyes" or "chubby cheeks" if you want them).
• Cat faces the camera: repeat "seen from behind, looking away from the viewer" at the start of the prompt.
• Scene too busy: remove the gulls and waves, and keep only the cat, the rail, the sea, and the sky.
• Paws or tail look odd: ask for the paws tucked under the body (a "loaf" pose), which is easier for generators to draw.
• Colors muddy: name the palette more strictly (for example "only orange, pink, and teal").

To confirm

• Aspect ratio: the syntax differs by tool. For a portrait page, 2:3 or 3:4 is typical, but match your book's trim size. Check your tool's documentation for how to set it.
• Consistency across pages: most tools won't keep Biscuit identical from picture to picture. If you need him in more illustrations, keep this cat description word for word, and look at your tool's reference-image or character-consistency features.
• Licensing: check the tool's terms for commercial use and print publication.
• Bleed and text: leave space at the edges for trimming. If text will sit on the page, the empty sky area is a good spot. Add the text in a layout program, not in the generator.

If you tell me which tool you pick, or Biscuit's details (eye color, white markings, a collar), I can tailor the prompt.