Idea based on an image I saw on a news site.
Interesting to model and light.
The character on the right is courtesy of MakeHuman. Finally made me learn how to use MH and Rigify - nothing complicated, but a start - textures need work.
For the walls I used a single image texture but I combined 2 copies of it scaled to different prime numbers to reduce obvious tiling - 2 copies of it for the light and dark parts of the walls
A bit of volumetric mist.
View in the windows is an image I found with a bit of blur, added in PS using a mask pass for the windows in Blender.