OK, this is just my opinion,, looking at the front of the car, you have almost a dozen different horizontal lines, and thats from the swage on the bonnet, to the top of the bumper! red moulding only adds to the confusion, its too busy! your eye is drawn to it for the wrong reasons..
Jetta headlamps are a little bit ten years ago, the bonnet lifters would look great if the front was a more simple "look" eg standard single round headlamps (not crystal) simple debadged grill, with a fairing, keep the bumper as is, bonnet lifters would then look cool! German plates to finish
Side of car has to be done carefully too! the extra rear door, again means theres too much going on! Painting the wheel centres black, I think is a good idea, not much else to do really, except getting rid of door handles, but that costs $$$$
My opinion is , if your going away from the factory look, keeping it simple is the name of the game!
Hope that didn't hurt

Tom