Art style: Vintage Storybook.
Full view of the arm skeleton illustration on the vintage book page, showing the humerus, radius, and ulna connected. Simple, elegant motion arrows drawn in pencil showing bending and twisting. Warm, inviting study lighting.
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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 "Vintage Storybook" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "Vintage Storybook". 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 "Vintage Storybook" idiom, not in any other medium.
