Ahaha - saw this in the comp - it was one of my favourite ones actually!

I thought it was really well done, with a cool design and some great chopping skills shown

It's just the front rim (and the tires which as iCreate said are too dark) that lets it down

It makes it look like its just be pasted on the backdrop

- lighter tire tread or a darker undercar shadow is what's needed.
As for the paint it's pretty good

It just lacks its 'shine' in places - needs a few more defined reflections on the parts facing upwards, for instance the reflection of the surboard is too faint, and is the only real reflection on the bonnet

Other than that great stuff!! Super chop!