no offence buddy but i think that this chop is of a novice standard.
The carbon fibre has no midtones and is very coarse, the brushing lacks refs, the door lines are single brown lines which make the car look toony, the body is grainy and generally blurry, the arches are poorly selected and look bumpy and aren't actually much bigger from the originals, and the R8 looking side needs some shadow.
There are much more i could say but they are the main points.
Style wise imo the wheels need to be bigger, the window refs look spot on though. I like the bg as well.
Not meant to be mean, just trying to help. Hope to see some improvements.