background sunset photo could have been a little more bright (if you had taken the same and printed), and the cropping towards the right of the car seems a little too tight for me.
Colors are great. The dust on the surface under the car is distracting. The focus ~ shallow DOF isn't. The crop on the right is distracting. I would be curious to see what settings you used. I've expermeted with gettin back further from a subject matter such as this and still being able to get a DOF with all of the desireable subject matter included. By moving back as far as is possible with a Long lens and the smallest apature you can use to get the most focus using a long exposure. I would love to have the real version of this Corvette as a ADULT Toy!