So here is the perfect coulour skin.First you add as basecoat Bestial brown.Then you highlight it with Bronzed flesh and then you should apply an equal mix of Bronze flesh and Bleached bone.For their clothes i suggest Dark angelw green and Snot green.Their hair should be at the most part Codex grey but at some parts chaos black.Their weapons need a mix of Scorched brown and Bestial brown while the tip of their spear a mix of Codex grey with Fortress grey.You can also add if you want some lines on Ghan-buri-Ghan face of Skull white,Snot green and Red gore.I wish this helps you.