Art style: Jasper.
A grand reveal shot as the library corridor opens into a massive circular chamber. Four distinct, monumental doorways are spaced equally around the room. Each door has a different visual theme. The scale is epic, and the lighting is dramatic, focusing on the four structures. Jasper style.
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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 "Jasper" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "Jasper". 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 "Jasper" idiom, not in any other medium.
