There was nothing mentioning in the rules that you couldn't create more panels. The only rule they had was that it had to be in the frame space allotted to you. I've seen others break a single frame into two as well.
Thanks. :3 Even if they don't though, it's okay. I don't find myself that funny as I lack a real sense of humor, so if one person enjoys it, I'm satisfied. I just needed to do some art with Sivir anyway. XD