You have what appears to be a repeating pattern on the floor. Is that intentional? The floor might benefit from a noise layer set to overlay on the floor to give it some grunge and vary the color a bit from one spot to another.... This is assuming what I see above as a pattern is actually not a pattern but the noise layer that just happens to look a bit regular.....

Very nice.... Is the intent with the reddish floors to indicate some type of alternate light source that casts a red glow instead of a standard yellow/white light?

Joe