Last week, while creating a Game of Thrones fan art post I came across the portfolio of Mark Hammermeister, a digital illustrator and designer from Detroit, MI, specialised in caricature, comic book art and portraiture. His clients include Playboy, The New York Observer, HOW Design, the Nashville City Paper, Citigroup and ABN AMRO. He has created some really impressive and recognizable characters, a selection of those are in this post…