I think this is one of your best chops yet!

The background and wheels fit really well and look quite cool!
I think the white/ pink is really nice too - but I agree with X-Raited, it needs to bend around the curves of the car a little bit more
The only other thing - the car is a little bit squashed, and I think you wanted it like this right?

But it does look a little bit strange because the wheels are squashed too
Overall a good try though

Keep it up