This character is based on concept art that was allegedly leaked from Rockstar Games.
It was rumored to be concept art for Bully 2, which may be in development.
Real-time character rendered in Marmoset Toolbag 3
Real-time model shown with and without wire-frame
The character sheet was found in an online article that speculated that it had been leaked from RockStar Games and possibly for the development of Bully 2.