Well the wing will have 2 colors under the winter camo for sure. It'll have a standard splinter camo on the upper surfaces. The question is: which colors?
Looking at this:
You can see a few things. First the canopy framing. Second the german crosses. The fuselage cross seems to have been dimmed with a light coat of paint. The upper cross on the plane behind it seems to be less bright than the whitewash around it, as well. Perhaps they dimmed that slightly (though it's much more visible than the fuselage cross)
From the forum where the photos were shown, one person offered:
"but both also share a refitted windscreen assembly finished either in 74 or 66 (my guess is the latter)" and another agreed.
A third person said "A friend of mine and I were theorizing perhaps that the canopy frame was RLM74 and the rest of the plane was in RLM71. A second theory is that the frame is RLM66 and RLM70 was sprayed over the plane."
RLM66 is pretty unusual. It's black-grey (nearly black) and does not fit any camo patterns. I would say that if it's not RLM66 (and it really shouldn't be) then it's RLM74.
That means it's most likely a 74/75 splinter camo on the top. They would have replaced the canopy with something on-hand, meaning their aircraft shared similar paint schemes. If the canopy is 74, that means the areas immediately around it are 75 (and the camo continues beyond this). You can see sharp demarcations under the white wash on the wings, so THEY follow the norm. If you look around the whitewash you can see the camo demarcation lines on the fuselage going towards the nose (standard) and barely see them extending past the canopy rearward. There is evident mottling on the side. The mottling is the same color as immediately around the canopy, so make it RLM 75 for the most part.
It's clear it's got a normal camo under that whitewash, but the problem I have is this: Did he prepare an area for mickey, or did he just paint directly over the existing camo? That is, should there be a background to him or not?
Here is the photo where you can see the camo demarcation along the nose and behind the canopy.
EDIT: At first I thought it was a high-backed camo (only coming down halfway behind the canopy), but now I think it came all the way to the bottom of the canopy frame, on further consideration.

That photo obviously has less whitewash than some others. You get to choose how much you want because he used that plane for a while and it would have differing amounts at different times.