Art style: Industrial macro realism.
A close-up of the compressed valve spring. A mechanic's thumb presses down on small metal split keepers around the valve stem. The chrome tool is still in contact. Reflections glint off the oily metallic surfaces of the cylinder head.
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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 "Industrial macro realism" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "Industrial macro realism". 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 "Industrial macro realism" idiom, not in any other medium.
Character appearance reference (MUST match exactly):
- Mechanic: A close-up of a mechanic's hand with weathered skin and minor grease stains. The thumb and index finger are visible, showing short-trimmed nails and detailed skin texture. The hand is positioned against a metallic engine cylinder head background in a workshop setting.
