I think it's a UV mapping problem. Here's my honest opinion.
1st Screen: Good, but I think you should grunge the textures up and use a different cieling light (the one from MP3 is crap)
2nd Screen. Good, except the doorway from the catwalk into the hallway on the second floor is somewhat blank. Make an archway or put a door in there. Also, the cieling lights don't look right. Are they coming from the cieling?
3rd Screen. I think that the piles of tires shouldn't be so neat. Also, one of the tires is going through the wooden thing.
P.S. What image editor are you using? Because in Photoshop you can easily get rid of the logo on the box.