Runar the Criminal Debt Collector

Concept/reference sheet of a character for an imaginary video game from my mind, as a part of concept art course for Reykjavik Academy of Digital arts, fall 2018.
Rúnar, a violent, alcoholic anthropomorphized bunny, works as a debt collector for various criminals and drug dealers in Reykjavik, Iceland. He lives alone just outside Reykjavik, and is always seen wearing the same, dirty, old clothes. He had a difficult childhood, and has been to jail a few times for drug abuse and violence. Rúnar's ears have been torn and cut in various fights he has been in, and the jail system in this world requiers the inmate to have a part of their ears cut, the size depends on the severity of their crime.
The made up video game is heavely inspired by Grand Theft Auto, but a bit more cute/adorable and with bunnies, and the ispiration for the character is Trevor Phillips in GTA5.