_apocalypticos

Color practice, and working with differently colored shadows and highlights. Hence why they're not sharing the same light sources/colors/etc.

The Apocalypticos are a secretive bunch, a cult, morethananything. They exist under the belief that the earth is their holy mother and that when they die[often through sacrifice at the age of 30] they will be rendered unto the earth to be born anew after the next apocalypse, when their "mother" has wiped away the sins of the past so creation may start over.

etc.