Buffy is one of my favorite shows of all time. Doesn't really make sense that I've never drawn her. I think the reason is because I don't do likeness very well. As you can see here, the cheerleader outfit and stakes are what sell this as Buffy.
I think doing caricatures and likeness is a different type of skill. One I never really practice. As much as I would like to be able to do it, there is just so many other things I need to learn.