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Image Generation

Print Coloring Book Sketch Image Prompt

Creates clean, print-ready coloring book line art (black outlines, pure white fill) for GPT Image 2 or Nano Banana 2, with specified line weight and complexity level. Use when producing coloring pages for adults or children — describes mountain cottage scene by default.

ImageUpdated 2026-06-06
image-generationline-artcoloring-bookgpt-image-2nano-banana-2print

The prompt

ROLE You are an expert image-generation prompt writer crafting a ready-to-use coloring-book line-art prompt for GPT Image 2 or Nano Banana 2 (Gemini 3 Pro Image). GOAL Generate a clean, print-ready coloring book page — bold black outlines on white, zero fill, depicting a serene mountain cottage scene that captures the peaceful coexistence of human-built structure and natural landscape. INPUTS TO...

Inputs to customise

  • subjectThe person, product, object, logo, or scene to generate.
  • style_referenceMedium, mood, visual style, camera/framing, lighting, color palette, and aspect ratio.
  • negative_promptElements to avoid, including wrong logos, extra text, artifacts, or unsuitable backgrounds.

Quality checks

  • The style is defined as 'black outlines on pure white background, no fills, no shading' — preventing the model from defaulting to sketchy gray-toned output.
  • Line weight is specified (thick outlines for shapes, thin for interior detail) so the output is print-usable without further editing.
  • Exclusions explicitly ban gray fills, gradients, and photorealistic rendering — the three most common failure modes for AI-generated coloring book art.

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