The concept was simple hall with more focus on improving usage of material with added nodes for specular effect and also to build some atmosphere using more nodes on the world. By last, this scene was also imagined to have some chances to usage of clothes in blender. It does look a bit empty, but in one hand I wish to avoid cluttering with much stuff and the scene itself was getting heavier to manipulate and render.
Textures are from
http://www.imageafter.com and
http://www.grsites.com/archive/textures/_
Replies
Last, model from reference. Look at a room like this and see how the light falls and mimic that, or find a reference that's close enough. Keep adjusting until there is visual parity.
Good luck!