I share with you this amazing, impressive and interesting collection of photos showing the various types of winter camouflage applied in Luftwaffe aircraft during World War II, especially in the Theater of Operations of the Russian front. Visiting the link below you will find a lot of pictures, some rare and colorful. Some of them I did not know and had never seen. No doubt an excellent source of research and references.
http://aviacaoemfloripa.blogspot.com.br/2011/01/camuflagens-de-inverno-da-luftwaffe.html
Best Regards!