the outside needs to be much more interesting. That model tree in the second pic really does not seem to fit. The streets look a bit too empty, and the buildings need to have alot more brushwork. The textures are not enough to get the structure across.
I like the textures
The inside looks okay. Again, the brushwork needs to be beefed up, and I'm not sure how well recieved that light fixture in the inside is going to be. Looks way to out of place.
This has definite potential. Keep up the good work and I look forward to more screenshots.