There are other things to fix, to 200,000 o.O chop with the same mistakes in my little need, you should focus on several days on a car, trying to be more precise. Going back to work I find the wing of a blue different than the rest of the car, is too curved to the right, giving a lower aspect to that part; the shadow under the car is too hard, a little comes disguised as another shadow that was in the asphalt (which is of low quality), the wings do not find them rounds but with the selection imperfections and it takes a while reflection of lights in the roof area, hood and rear wing having those buildings behind.
Continue to practice, perhaps following my advice