Raph fan art, personal project based on the awesome 2D concept of Nicola Saviori.
Sculpted in Zbrush, rendered in Marmoset and composed in Photoshop.
Also check out this awesome Donnie, modeled by @claudioabraham , part of a cool collaboration:
https://www.zbrushcentral.com/t/donatello-teenage-mutant-ninja-turtles-tmnt/442710