Watercolor illustration: an owl holds a letter, a duck writes, and a mouse reads under a full moon at night.

Use a cartoon illustration style with simple lines and cool tones to evoke a calm night mood. Soft watercolor adds a dreamy touch, and the exaggerated A panoramic scene : children's book cover with 1:1, The scene takes place at night under a glowing full moon and starry sky. In the center, a white duck wearing grey shirt sits on a grassy patch, writing in a large A dozen thick draft papers with a glowing quill pen, a bottle of ink on the ground. To the left, a mouse with blue shirt , Sit down against the tree eating a piece of cheese and reading a large storybook. Above them, perched on a tree branch near the moon, is a wise-looking brown owl with a leather mailbag on its back smiling, with speckled wings, holding a sealed envelope in its beak and spreading its wings slightly. The background features rolling hills, a winding moonlit path, and soft-textured clouds. The color palette is dominated by deep blues and purples, with warm golden light emanating from the book. The overall style is soft, textured, and reminiscent of classic children's book illustrations. See more