Could you post your bg donor please? Because I find it strange that some of the ground reflections down below the front grille are identical to ones which I brushed on my backdrop:
http://www.autemo.com/dc/users/2/CI401/2747/chops/Skyline_R34_-_Project_Shine_by_ATC_Design.jpg
Comparing the two shows that the skyline reflections still remain in yours, but have just been blurred.

Please make sure that when you use a bg it isn't from another chop, thanks.
As for the rest of the chop itself:
Some cool simple ideas, the slammed look is cool and the ideas are good

Just maybe the rims are a bit off, and as said above, it seems to big for the backdrop
Keep it up though
