Well i cant say I'm a big fan of this work, I will explain why and believe me when I say i will be totally honest about it and will not hold back.
( I think top painters should have the most picky comments in order to improve)
If I'm to harsh its not my intention 
 
Convertion work:
-Wings sculpt are really a big let down i dont like them a single bit and just look like rushed and crude slabs of gs punched and streetched i would rate them 5/10 
 
Paint work:
-collor choice is very dubious and looks like someone just got out of control with diferent colored washes, theres no focus except tons of diferent colors, also armour is confused with skin and tabard. 7/10
- wheatering and rust effects are just paint slabs with no care at all especially on the legs Back 6/10
- Base work is very original and i like ice effect 8/10
you can do better!