This is my version of Karai based on her appearance in the 2007 CGI Teenage Mutant Ninja Turtle movie simply called " TMNT ". She's usually the leader of The Foot Clan ( a.k.a. Shredder's old gang ). She's not really a villain.

I dunno if this is worth mentioning but there are actually 9 Foot Ninja in this drawing. They're just so well hidden that the viewer really has to know what they're looking for to see them.

Then there's Foof. He seems to have wandering in on something.