for skin, i used Deck Tan (Prince August) with different mix of Burn Umber and Flat Earth, a little bit of Grey Stone.
I grow up the light with Ivoiry.
After i used washes of Flesh Wash( games worshop) to unify .
all the point are made with Burn Umber (PA) and Scorched Brown (GW)
very nice dude, i finished my bone hunter a few monthes ago. i used similar shades but went with a some what predator 2 skin tone. these kits are a joy to paint, though i was a bit nervous about actually painting it, as it is a special one