That's not inter for me, sorry. Your brushing is extremely blurry and you should mark the areas you want to work in, cause edges look like slime and are at some points angular (wheel arches). The exhausts have the wrong perspective and frontwheel should be placed more into the center of the arch. The new background you see through the backlight could be done better, it looks like you used some inner glow for the areas, you marked therefore. The stickers on the trunk have a wrong perspective and don't fit the car I think.
And what about the background. It has been lengthened upwards. You definately can do better, as I see your profile at the moment. Try to improve your brushing.