Hi Warhawk,
thank you for the question.
photo 1: it is known to be camouflaged after having seen other photos of the same plane. The underexposition correlated to the snowy background hiddens a bit the faded camo.
photo 2, 3: camo is visible
photo 4. I don't know.
About Lagg, photo 1 and 2, I think that nearly all Laggs were black and green. Their camo is more standardised than on MiGs.
I know that camos, on photos of Lavochkins and Yaks, often appear more contrasted than on MiGs. It's difficult to explain.
I suppose that many MiGs were painted with green/dark green camo, or the black bands were thinner.
Besides, I think that German films darken their representation of green, while black fades off, particularly if the plane is a wreck, immobilized since months before the photo was taken. So, it's easier that planes appear in solid green on German photos than on Russian ones.
Massimo