This looks a little odd.
I'm not too sure about the artistic qualities of this artwork, but I can give you a +1 for the attempt on a toyota Supra-like vehicle on the left. As for room for improvement, the bevel tool is not your friend. When you used it, it took a lot of detail out of the vehicles. That, and the shadows are a little off. The direction of the light looks wrong, and the light looks too bright. This is a scene at night, so the shadows should be a little less defined, and the light on the vehicles should be a little more defined.
Other than that, it was a pretty good attempt.