I don’t know exactly what part of the books this drawing refers to.
There are several rogue warriors and sellswords in Game of Thrones, I guess this would be a generic, less important villain.
The brief was about a sellsword showing off a severed head (which I would assume he dutifully separated from the rest of the owner).
I took the chance to experiment with lighting, I’m quite happy about how it turned out.

by Paolo Puggioni