Children's Picture Book Interior Page

Create a children’s picture book interior page in a vertical format, with a warm off-white paper background and a multi-panel storybook layout. Use a {argument name="art style" default="hand-drawn children’s book illustration style with soft gouache, colored pencil, and crayon textures"}, visible paper grain, natural sketch-like lines, and rounded, charming characters. Add clear and readable story text, laid out like a real picture book page. Key words may be highlighted in color, with a few small hand-drawn decorative elements throughout the page. {argument name="subject" default="The story of OpenAI, multiple pages"}