Renders look nice. Only thing I really can see is that the sidewalk texture is obviously a picture applied to the Y axis. You can see where the colors draw lines on the side of the sidewalk (the curb). I would make that have it's own texture similar to the rest of the sidewalk but with the image projected along the Z or X axis depending on which side you do. The only other thing I can see is that the walls somehow look like they are made of plastic. Not really sure how to fix that. But these are very minor errors that you would only see if you were looking for errors. Anyways, looks great, it is better than I could have done. O and the car is made by a man named Nigel. You can download it here:
http://www.lwg3d.org/v3/meshes.php?cat=52