My first finished work, after tutorials
Looks really good. So many details.
You could somehow fix the lightning. The air looks to dense somehow.
I agree about the fog/mist effect. It is indeed a bit strong. The specular on the chair seems to be very high as well. Tone that down some.
The rest is very well done. Great attention to the little details. I like it.
BgDM
The plant in the corner is not real enough for this scene. The other elements look good.