Come on now stop belittle his work, who is the worst in the world..
I wonder of some individuals here that he looks first brush.
I can not say that this is super great, it is not, and work is bad, but show respect.
better to have so many words of advice what to do and improve, to move from the start with small changes, Is not that so?
Start from the beginning, put the car, changing rims, dims some part of the car (lights, windows) clean look, change the background, some small details in addition.. For beginning and novice easily.. try