Base coat with black
Dry Bush Celesta Gray
Shade Agrax Earthshade
Base oat Veins with Caliban Green
Highlight with Moot Green
Edge highlight Moot Green with Ogryn Camo 1x1
Drybrush   Dawnstone  
Drybrush   Fenrisian Grey  
Light drybrush   Celestra Grey . Face   Tyrant Skull  
Shade stones with   Agrax Earthshade , face with   Seraphim Sepia  and then Veins with   Ork Flesh  diluted with 3 parts of   Lahmian Medium  
Basecoat veins with   Caliban Green  
Highlight with   Warpstone Glow  then   Moot Green  
Drybrush the face with   Terminatus Stone  
Drybrush   White  
Coat with   Mournfang Brown  or   Doombull Brown   odiluted with   Contrast Medium  1x4. Basecoat metal parts with   Corvus Black  Mini painting noob with great curiosity and many tools at hand