Wesley Burt, a conceptual illustrator that has created some fantastic pieces for Joker in Batman: Arkham Origins... You need to check these out!
Shoot! I really wish the last 2 images were in the video game and the fourth Joker pictures (showing all the faces) looks pretty familiar, I can't think of the actor's name (ugh!). My favorite Joker concept art by far. Keep up the good work Mr. Burt.
Who's your favorite Joker?