Okay, I'm not a professional and all that but I've been using photoshop for a week now and i guess i know a lot for my short time of using it. *it's jumping lol*
You should try using a clip from Inuyasha showing Sesshomaru attacking or something. And the clip should be on the bottom left side of the sig, where it's not in the way...
Good try, though. It's better than anything I could do...