Base :



chop :

Very good try, i like the style you went for, but needs more shadows especially at the front of the car to give it more definition, if you wanted to give it a completely slammed look you need to lower the front bumper, but it would still need shadows.

keep up the good work ^^

Okay, where to begin with...
You are experimenting with too many things at the same time, to successfully execute them, keep it simple at the start.
The wheels look way too big and off, the car would never roll in real life, plus the frontwheel is too far back.
Front of the car has no shadow.
Splitter is at the wrong angle.
Engine is at the wrong angle.
You took the interior from a 4-door car, you can see it from the otherside, there's a triangle reardoor window, plus the driver door is really short compared to the passanger door.
Due to the interior being at a wrong angle for your image, the rollcage is crooked(Just look at the windshield).
Reflections on the window do not fit the surroundings, the windshield you cut off from the black part at the bottom it, still has the old reflection on it, making it look weird.

That's all for now, hope you don't take this offensive.