The minis you have painted are probably the only ones that can be photographed from such a short distance and still I can't see any flaws. I agree that the face, though it's really well done in its own, somehow stands out.
As always awesome weathering, bloody good details (IMHO the white stuff should be seen as ice crystals, it implies he's on a realy cold planet which matches the Russian theme (yeah, clichees, I know). Broootal.
the armour effect is so so good.. but my complaints are: the snow is like white grass..maybe is better to use another stuff yo do it.. in other way.. it needs more light in the top than the bottom and some lights in the edges..and the face looks plain, only one colour without tones or lights..it is in a low level comparing with the really good armour.. it needs more work on it..
i hope itwill not offend you.
cheers.