The Belgian illustrator Adrien Noterdaem is crazy (and skillful) enough to design all the movie and music stars in the Simpson version! His Draw the Simpsons series, might give you an idea of what he can do. Obviously it was just a matter of time until he did the same thing with the heroes of the Game of Thrones!
He has an impressive hand and he captures great Samwell’s innocence or the body of Hodor! He even draw George R.R. Martin a-la- Simpsons!