Art style: 3D Pixar-style animation.
A close-up of a small hand placing a light blue diamond into its slot on the wooden puzzle board. The board shows other completed shapes like the triangle and square. The background is a soft blur of the colorful nursery floor. The light blue of the diamond is vibrant against the tan wood.
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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 "3D Pixar-style animation" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "3D Pixar-style animation". 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 "3D Pixar-style animation" idiom, not in any other medium.
