This is an illustration for Fantasy Flight Games collectible card game named A Game of Thrones, which is based on the world of best-selling author George R.R. Martins A Song of Ice & Fire.
The character is Alfyn Crowkiller, and he is a quite crazy wildling leader. He is clad in the mail he has stolen from the rangers he has killed.
Illustrations for card games like this always have short deadlines, and are supposed to be viewed on a smaller scale than here.