The First Book in the Cloud Library: A Small Gesture Tells the Story

Original children's picture-book illustration: a child in a yellow raincoat standing on tiptoe to return a blue book to a cloud-shaped low bookshelf, the shelf resting on a bright floor, a small chair and a red cup by the window. Rounded gouache brushwork, pale sky blue, bright yellow, and coral red palette, the child's pose natural, hands simplified but anatomically sound, no book title text shown. Output a single high-resolution image with sharp subject detail and edges, no collage, no grid, no low-res preview, no watermark.