XD I don't think it's bad to snatch someone to use in a theme, 'cause hey, if he (or in some cases, she) looks cool, why not use him/her? It doesn't matter if you don't even watch/read whatever series they came out of, just as long as they look good, right? XD
I also recall you having a theme with a beautiful red witch holding a brown staff earlier... Am I right?
And in case you have no clue what I'm talking about, it's this pic that you used in a previous theme, if I recall correctly.