Art style: Cinematic Neo-Noir.
Beneath the Colosseum, a shadowy view of vast hydraulic machinery — massive wooden waterwheels, bronze pipes and stone channels gushing water into the arena above. Medium wide shot looking up through a lattice of timber supports toward daylight and the underside of the flooding floor. Silhouettes of engineers and slaves work levers and ropes in the gloom. Cold shafts of light pierce dust and mist from above, glinting off wet bronze and dark rushing water. Deep browns, wet stone grey, faint amber light. The mood is mysterious, monumental, awe-inspiring — the hidden engineering of an empire.
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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 "Cinematic Neo-Noir" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "Cinematic Neo-Noir". 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 "Cinematic Neo-Noir" idiom, not in any other medium.
