Glad I could help. I honestly don't think a cartoon character is a good idea. It is a cute idea but most men looking at porn aren't looking for cute cartoons. Of course unless your site is a niche site geared towards that.
I would suggest you buy some clothed content of a very nice looking but professional looking girl and then portray yourself as a female voyerist or photographer and use the pics you bought to bring your alter ego into your site.
Like one pic on the front page welcome area. Maybe post a new pic of "yourself" every once in a while in your journal with a little story about how you so love your site because.... and go in to some fantasy.
It is so much easier for us girls in this biz, huh? We just have to be ourselves.
It's good to be a girl. lol