A space black orc

Here's an "orc veteran" for Grimdark Future - the first of a small unit that I hope to finish this evening. 

With my space orcs, I'm trying to keep the pink snout, ears and lower lip as the unifying characteristics, with a bit of variety in the skin colours - mainly green but also black, grey and brown - and possibly blue and dull red too.

This guy was the test for black skin; I was aiming for the original colour scheme for Citadel black orcs, as seen in Gary Chalk's illustration for Warhammer Armies (or was it Ravening Hordes - I forget).