Art style: SpongeBob-style 2D cartoon characters in realistic live-action environments..
Inside the Russian National Library (RNB) at Park Pobedy, St. Petersburg. A tall book-filled shelf stands directly behind the characters. Blufford (Squidward-like librarian) walks up to HermanBob (SpongeBob-like librarian) with a stern, questioning expression.
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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 "SpongeBob-style 2D cartoon characters in realistic live-action environments." style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "SpongeBob-style 2D cartoon characters in realistic live-action environments.". 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 "SpongeBob-style 2D cartoon characters in realistic live-action environments." idiom, not in any other medium.
