Art style: Children's Book.
Full-length view, the entire figure visible from head to feet, standing upright and centered — Pipi, a tiny round bright-yellow bird with a plump fluffy chest and soft downy feathers. She has a large rounded head with two big warm dark eyes full of kindness, long curly eyelashes, rosy pink blushed cheeks, and a small triangular orange beak curved into a cheerful smile. Two little wings stick out from her sides like stubby arms; one wing is raised in a happy friendly wave. A single soft feather-tuft sticks up on top of her head. She stands on two slim orange legs with tiny three-toed orange feet planted on the grass. She stands on a lush green sunny meadow dotted with little flowers, a rainbow arcing in the bright blue sky behind her.
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FINAL STYLE ENFORCEMENT (this is the authoritative rendering directive — it overrides any style wording elsewhere in the prompt):
Render this image entirely in "Children's Book" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "Children's Book". Keep the subject, composition, camera angle, lighting direction, and colour palette from the description above — but EVERY surface, skin, fabric, material, and environmental element must be rendered in the "Children's Book" idiom, not in any other medium.
