Excellent photos there mate, but the most unusual picture is the trooper wearing an animal skin. I,m pretty sure this was not only done to keep warm but also as a form of early camouflage , there would not be any other reason as its to obvious to wear in the wrong environment . I would expect its possibly a snow cover or for dense undergrowth containing birch or some other similar trees. Whatever it is its pretty interesting , I,ve never seen another like it