I really love everything about this build. The wing looks great assuming the car sees some track time, otherwise it's a bit overkill, but I think you said it sees the track (or will) so I love it!
What's with the crush everyone has on painted reflectors? Honestly I think painted reflectors looks pretty stupid. Either shave the bumper and fill it in, or leave the orange OE reflectors. The little painted bumps look silly, but then again, I'm a function over form guy.