C&C per req:
Lots of potential here, but I don't think this image quite makes it. You've got the car centered in the frame, right in front of the tower, and being much lighter than the car, it takes the eye away from the intended subject. As well, a full profile shot is not usually as interesting as 3/4 shot.
This is a really tough image to get right. Doing this without additional lights is a huge challenge, BUT it could be done. Ideally I would have positioned myself about 45 degree on the left front fender and shot from a lower position with a much larger aperture to try and soften the background. At least one diffuse strobe should have been used to provide some fill and highlight the car against the building.
Keep working at it and don't forget to level your images in post!
Just my $00.02 worth - your mileage may vary.
~John