This is a shared account by 3 people.
DaWolf501: DaWolf does all types of art. He uses Deviantart the most often, this is why the account is named after him.
Thorboy501: Thor does not do art often. He does it on the computer when he does do art.
Withered Toy Bonnie Bunny: WTBB draws with paper and pencil. He draws every once in a while.
All of them can be found on the FNaF wiki.