I like the mods you put on the car a lot the wheels and colour, but the final image has quite a few mistakes which is unlike of you Konrad.
Things I spotted.
1.The door lines are cut
2The side skirt is incomplete, so it needs to extend a bit
3 Rear arch is not perfectly round.
4 I think the texture you put ontop of the paint is making it look patchy, you just need to smooth it out a bit
But still good work man, keep chopping!