base

chop

The ideas you have is good.

But the car itself is too bright and 'cold' to blend with the background. what you need to do is add a warm photo filter (Image > Adjustment > Photo filter) or edit the colour balance (Image > Adjustment > Colour balance) and make the image a bit yellow and red

Also, the car is flipped, so the numbers on the numberplate need to be removed

Yeah, good ideas, and i´m sure you will get better and better with the time!

The BG itself looks awesome, to adjust the car to it you can use a very soft pentool in the colour of for example here the sun and draw slightly at the car.
And for sure you can use the methods J_HUI said.
The rims look quite good, but don´t use the same rim for both, rear and front.
Your front styling is nice and aggressive.
The quality of the car could be better.

Good chop, keep it up!