Concept Art of Joker from The Killing Joke

According to this site, these are the allegedly the first concept art of The Clown Prince of Crime in an upcoming Animated film of one of the best and most disturbing Batman stories of all time.

"The Killing Joke" earned notriety because of how Joker kidnapped and tortured Barbara Gordon aka Batgirl, before paralyzing her from the waist down, effectively turning her into Oracle before the New 52 reboot. Bruce Timm, the man behind the DC Alternate Universe, which includes Batman: The Animated Series, and Justice League: Unlimited, is helming the project.