Textures seem pretty blurry and lowres. You didnt uniquely unwrap that entire building did you? This is definately something you should be using tiling textures for.
The model looks ok, I don't much like the textures as they are very splodgy. Try adding some sharper, finer strokes to define the shapes and material better.
Started to do a paintover, but then just pasted a photo for u...just compare, and this will help you out a lot...make your loops define more form also.