Art style: stickman.
A robust early human with a prominent brow ridge, deep-set expressive eyes, and weathered skin. They have thick, dark hair and are wearing simple, primitive animal hides. They are crouched near a fire at the mouth of a cave. Their expression is one of intense focus and budding curiosity. The background shows a rugged prehistoric landscape at dusk with flickering firelight illuminating their features.
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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 "stickman" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "stickman". 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 "stickman" idiom, not in any other medium.
