350Dense Doodle Coloring Book — Space Desserts

Directly generate one completed black-and-white coloring page image now. Return only one flat printable page, without explanations, questions, code or colored examples.
Output size 2480x3508 pixels, A4 portrait, 300dpi, print-ready poster.
If the ratio is empty, use portrait A4 (210:297). Keep the entire scene and every object inside the paper with 10–12mm blank white margins on all sides. For another selected ratio, rearrange the same scene within that ratio without cropping.

Main animal: 【Main animal】
Theme: 【Theme】
Key props 1: 【Key props 1】
Key props 2: 【Key props 2】
Key props 3: 【Key props 3】

An empty Main animal selection means Cat. Draw only the selected species; changing the animal keeps the scene and line-art style. The Main animal selection overrides any different species mentioned in the pose, activity or theme. With None (props only, no people), omit all people, animals and animal-face decorations, using only props, furniture and plants. Ignore pose and activity in this case and fill their space with suitable objects. All subsequent animal placement, activity and appearance instructions apply only when an animal is selected. For other empty optional fields, choose values that suit the theme.

Create one free-form dense cluster of cute doodle props. Use 38–42 motifs, with only one or two selected animals nestled among the props; all others follow the three supplied prop families and the same theme. Do not add animal-face objects or other animals. With None selected, every motif is an object. Mix large and medium motifs with varied angles and heights, not aligned rows or scattered stickers. Motifs are 23–35mm wide, with larger animals about 40mm. Outlines never overlap; leave 1.5–3mm white gaps. Include 6–8 plump stars, hearts or crescents at least 10mm wide within the total count to fill gaps, without tiny dots. Split motifs into an average of 4–6 broad white areas, targeting 180–220 areas in total. Most areas fit a 7–13mm circle and the smallest intended areas a circle at least 4mm wide. Separate only bodies, wings, broad toppings, wide bands and large leaves. Animal eyes and mouths are open curves; faces remain broad. Omit seeds, tiny flower centers, stamens, starfish dots, noses, cheek dots, buttons, straws and fine cone lattices. Helmets, windows, glasses and handles use single outlines without narrow double rims. No room, scenery or large border background.

Aim for approximately 120–250 closed white coloring areas and 1–2 hours of coloring for a middle-school student. Except for the dense doodle, preferably target 140–180 areas. This counts coloring areas, not objects. Most areas are at least 6–15mm wide at A4; the smallest intended decorative areas are at least 4mm. The wider-area instructions for the prop collections take priority. Never add tiny repetitive patterns to reach the count. Merge narrow bands, wedges and tiny holes into neighboring areas or open them to the background.

Animals are original rounded characters with clear species-specific ears, bodies and tails. Cats have triangular ears and long tails; dogs have floppy ears; rabbits long ears and short tails; otters small round ears, long bodies and thick tails; hamsters small round ears, plump cheeks and short tails; bears round ears and broad muzzles. Eyes and mouths use short open curves; faces remain broad white areas. No tiny closed noses, dot pupils or fine fur texture. Keep bodies, paws and tails separate from objects.

Use only smooth black continuous lines on white. At A4, outer lines are about 0.5–0.7mm and inner lines about 0.35–0.5mm. Close every coloring contour. No black fills, color, gray shading, hatching, grids, checks, fine decorations, texture, shadows, mandalas, letters, numbers, titles, brands, existing characters, signatures, watermarks, book mockups or multiple panels. Do not render the input sentences as text.

[Final output format]
Output size 2480x3508 pixels, A4 portrait, 300dpi, print-ready poster.
This selected output format takes priority over any fixed canvas size or aspect ratio elsewhere in this template. Adapt the composition, text zones and margins to the selected canvas without stretching or cropping essential content. Device safe areas apply only when a device is selected. Never print these format instructions on the image.