The light tone of the Joker’s bleached skin made it necessary to use outlining to get the hands to stand out enough. I also outlined the neck and jawline but not the face.
The hair is a bit difficult.
If you google image search for “Joker” it’s almost ALL Heath Ledger, a tiny bit of Jack Nicholson, NO Casear Romero, and the occasional Batman The Animated Series. Wasn’t Batman at one time a comic book?
