Art style: Industrial macro realism.
A macro close-up of a dual valve spring on an engine cylinder head. A polished chrome valve spring compressor tool is positioned above the retainer. The spring features orange and yellow paint markings. The background shows a cast iron engine block with industrial lighting and oily textures.
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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.
