New chop

Looks pretty good. Nice change of background atmosphere and what looks like some decent brushing and reflection work.

Mistakes I can see:
- Exhaust smoke looks quite unrealistic and is difficult to make look good. I like to use a strong smudge tool and smudge the smoke
- Both rims look off, particularly the rear one. The rear one looks like it's rotated too much facing towards us
- Rear window reflection needs some yellow/brown to match the wall (rather than just white)

Klaus pretty much said it all
But I agree it's really good effort that would look so much better if the rims fitted slightly more - compare the shape and angle of your rims to those on the base, and you will see why they don't quite look right

But some very good brushing here, a nice backdrop change and some good ideas
keep it up

Thanks for the comments ! ! !

And , yep , both you have right , i need to see some tutorials to fit wheels more realistic and i hope to do better next time . I am so happy because the brush is correct and appreciated !

Here is a video about this chop http://www.youtube.com/watch?v=Ybcazs5GKP8&feature=share