Making an original character is the easy part, the hard part is realizing every single character created exists in the context of those that came before them, all characters have to come from somewhere. And once discerned, only then you have achieved true zen
"One is wearing a green dress, pearls and has a lot of blue hair."
"A lot of blue hair? What a freak. Ooh! It's Marge! She's become a crazed criminal just because I didn't take her to the ballet."
"That's exactly how Dillinger got started."
"Really."
