A comic style scheme for the Planet Eaters using the official color scheme. Check out Mike from Epic Duck Studios for a full tutorial on the technique here: https://www.youtube.com/watch?v=AU0EdGVtHMI. I used his videos but different paints to more closely match the box art.
Prime with   Zandri Dust  Base color the belly in   Balor Brown  and the skin in   Mournfang Brown   
Base color the armor in   Gehenna's Gold  : Base coat the glowing lights in white and then a green glaze or contrast paint. 
Shade the armor with   Reikland Fleshshade  
Paint the shine/reflections on the armor in   Auric Armour Gold  and   Runefang Steel