DM, a good body shop should be able to match it and blend it right in so you never know it was there in the 1st place. I had to repaint my Mini about 6 weeks ago because of storm damage they repainted the hood left fender door and the shop blended it right in it looked like it came from the factory you could not see the difference even when you opened the door and hood. Perfectly done. I would look around and see if you find a shop that does high end cars and check out there work. It could be that the prep work was not done correctly or the paint not mixed right on your door. Honestly I would not worry too much your door is an easy fix a good shop can do it and you never will see the car has been touched up.