Lighting is nice, but need to work with materials
What for to deceive, flatter?
Illumination here is not present absolutely, and it is necessary to work over all!
You do by such flattery only worse.
Zeus
Moderators all the same will transfer in WIP,
Scene make more difficult, it is more than objects of the different sizes (for example teapots) and place them in a cube with one window (apartment),
Material - grey.
Also adjust light, try options, in the Internet already it is a lot of information.
Good luck and beautiful renders.