Prompt formula
[Scene] + black and white line art coloring page, thick clean outlines, no shading, no gray, white background + [difficulty] + 3:4
Key words: line art, coloring page, no shading, no gray. Without them the model often adds gray shadows, which makes coloring awkward.
Difficulty by age
| Age | What to write |
|---|---|
| 2 to 4 years | very simple, large areas, very thick outlines, one big object |
| 5 to 7 years | simple scene, thick outlines, a few objects |
| 8 to 12 years | detailed scene, medium outlines, background details |
| Adults | intricate patterns, fine lines, mandala details |
Prompts by theme
Dinosaur (5 to 7 years):
A friendly dinosaur eating leaves near a volcano, palm trees around. Black and white line art coloring page, thick clean outlines, no shading, no gray, white background, simple scene. 3:4
New Year tree (2 to 4 years):
A big fir tree with simple round ornaments and a star on top, gifts under it. Black and white line art coloring page, very thick outlines, large areas, no shading, white background. 3:4
Princess at a castle:
A little princess with a crown standing in front of a castle with towers and flags. Black and white line art coloring page, thick clean outlines, no shading, no gray, white background. 3:4
Cars:
A fire truck, a police car and an ambulance on a city street. Black and white line art coloring page, thick clean outlines, no shading, white background. 3:4
Underwater world (8 to 12 years):
Underwater scene with a turtle, fish, corals and a sunken ship. Black and white line art coloring page, medium outlines, detailed, no shading, no gray, white background. 3:4
Coloring page with a name
Model: Qwen Image 3.0 or Nano Banana Pro.
Coloring page with the name «МАША» in big bubble outline letters at the top, below a cute cat with a gift box and stars around. Black and white line art, thick clean outlines, no shading, white background. 3:4
(«МАША» is the Russian name Masha written in Cyrillic; put your child’s name here in any language.) Check every letter of the name.
Coloring page from a photo
Upload a photo of a pet, a house or a toy:
Turn the dog from the photo into a coloring page: black and white line art, thick clean outlines, no shading, no gray, white background. Keep the recognizable shape and features. 3:4
It is better not to upload photos of children: models often refuse them, and a character who looks like your child can be drawn from a description.
Printing
- The 3:4 aspect ratio fits A4 in portrait.
- If the outline is faint, increase the contrast in any editor.
- For a thick coloring book, make 10 to 20 images on one theme.
How much it costs
| What | Model | Approximately |
|---|---|---|
| 1 coloring page | Nano Banana 2 Lite or Qwen Image 3.0 | ~6 rubles |
| 10 coloring pages | the same | ~63 rubles |
| Coloring page with a name, 2K | Nano Banana Pro | ~25 rubles |
KADR (kadr-ai.ru) prices, November 2026. This is not a public offer. More about the models: Nano Banana 2 Lite, Qwen Image 3.0. A fairy tale with illustrations: children’s fairy tale with AI.
In short
An AI coloring page: the scene plus «black and white line art coloring page, thick clean outlines, no shading, no gray, white background», difficulty by age, 3:4 aspect ratio. The child’s name goes in quotation marks. A coloring page costs about 6 rubles.
