This is a simple recipe on how I batch paint my Neurogaunts.
Red Flesh
Basecoat with   Mephiston Red  
Wash with   Carroburg Crimson  
Drybrush with   Evil Sunz Scarlet  
Drybrush with   Wild Rider Red  
Drybrush with   Troll Slayer Orange  
Brown Carapace Armour
Basecoat with   Rhinox Hide  
Wash with   Agrax Earthshade  
First Highlight with   Mournfang Brown  
Second Highlight with   Karak Stone  
Black Details
Bone Details
Basing