Well, if we convert it into black & white, to get a better idea of what the profiler had to look at...

Then, we consider that the paint scheme used, almost unanimously, in that time period was RLM 74/75/76, I'd go with RLM 74/75/76 and just assume the colors on the profile are wrong. Is that an Eastern Front bird or Reich Defense?
Read through
this website, its a
huge help. The only thing that I dont like is that the staffel colors are wrong, he has white, yellow, red for 1, 2, 3, staffeln of a I Gruppe, but that should be white, black, yellow, as so many sources indicate. I was actually able to see that that was a bird of 6.II/JG53 just by looking at the markings.