I like the panel lines you have in the latest ones.
I do not trust many of the IL2 skins I've seen, but the decal sheets are usually VERY good. I cannot see a lot of detail from that one small picture of white 11 but here's things I can see that are not correct...
The mottleing on the sides should be less "dotty" and more of a wash.
Mottling on the vert stab should be less altogether and more "blurry".
The MG access panel apprears to be aluminum.
it is very hard to tell with the variances in screenshots and lighting but it appears that your colors are a little too brown, DunkelGrun and GrauGrun are not quite so "olive". In my opinion the shades of green used on that decal sheet are very close to correct. Try taking a sample of those and put them next to the ones you are using.
The "squiggle" (what is the correct term for that?) is a little rough, and too far back too.
The chipped paint is a nice effect but too uniform in my opinion.
Wrong font on the werk nummer.