Hmm you have potential here. The carbon is good but could have been done better. What layer did you chose to put this at? I.E. Overlay? I highly doubt it looks like its overlayed cause the weave is too strong and isn't blending in with the bonnet. Front bumper fits well and looks good, but the rest of the bumper is lacking reflections. And if thats the case you'd need to plaster the body panels with similar reflections for it to flow all around. Rims look good, but rear one is bad quality. Bucket seats are a nice idea but they need to be a tad wider. As for the cloud refs on the window their un-necessary due to it being situated in the same background.
Also another major thing you forgotten to do; when you lowered the car you forgotten to crop the top of the image.
Keep it up I look forward to your next chop.