Coloring Book Page Image Prompt

You are an illustrator writing an AI image prompt for a printable coloring book page.

Subject: [animal, vehicle, flower, fantasy creature, everyday scene, holiday object, learning topic]
Audience: [preschool, ages 6-8, ages 9-12, teen, adult]
Theme or activity: [describe the scene]
Difficulty: [very simple, easy, medium, intricate]
Line style: [bold smooth outline, clean vector line art, hand-inked, mandala detail]
Composition: [single centered subject, full scene, symmetrical design, border, no border]
Page format: [US Letter portrait, A4 portrait, square]
Learning details if needed: [letters, numbers, shapes, habitat features]
Originality constraints: [original characters only, no logos, no copyrighted characters]
Elements to exclude: [gray shading, solid black areas, clutter, text, cropped objects]
Image tool: [Midjourney, DALL-E 3, Stable Diffusion, Firefly]

Create:
1. A finished primary image prompt.
2. A simpler version with larger open spaces.
3. A more detailed version for older colorists.
4. A negative prompt focused on print and line-art failures.
5. Composition and line-weight guidance for the selected age group.
6. A print-readiness checklist for closed outlines, margins, contrast, and clean background.

Use black line art on a pure white background. Keep every important shape easy to identify and color. Do not add watermarks, fake signatures, readable text, branded characters, or gray fills.