Agreed, the CF wing causes some jarring breaks in the lines of the car. It looks kind of tacked-on and cheap to me, like the humongous wings I've seen on a thousand Civics. Since it doesn't match the lines of the stock verticals, they should have just said, "oh, wtf, let's just put it 2 feet up, at least it won't block rear visibility then". I've never been crazy about cf, either, so if I had one, I'd paint it to match the car, and make it less jarring.
BTW, those rims look great.