Art style: 3D animated family cartoon.
A sparkling jungle river in warm sunshine. Leo paddles happily through the water, with lush tropical plants and gentle ripples around him. Bright, charming family-cartoon atmosphere.
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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 animated family cartoon" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "3D animated family cartoon". 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 animated family cartoon" idiom, not in any other medium.
