I'd like to find some artwork with Pikachu wearing boxing gloves, or images of Pikachu as a wrestler like Macho Man Randy Savage. Styles. There's a Deviant Art gallery I found with art like that and the artist is talented. I can't really settle on a wrestler.
I know I'll change it when it's closer to the end of the month for Halloween/my birthday, it'll most likely be an image I have of Aerith as a witch that I'll use. Whether or not I'll change my current one before that idea I'm not sure just yet.