unlit materials

Hi guys! I want to show you this model that i did for 3December! Render on Marmoset Toolbag 3 I hope you like it :) The concept artist and his work : Peter Straubel https://www.instagram.com/p/Bno1X61HcbY/?taken-by=peter_straubel https://www.artstation.com/peter_straubel