High-poly

Thank you for this, it is fascinating.

Ah, those objects were not modeled but are 3D-scans. Which makes sense, nobody would want to work out those objects just for some picture. Did you 3D-scan them yourself? Somewhat easy even with a phone today. Or did you get the models from some web source?
The very simple topology of the room makes you realize, how much more important textures and lighting are for a scene, than face-count.

Even the wireframe of the character looks sexy!