I'd email the folks at ebay and ask about copyrighted characters drawn by you and see what they say. Couldn't hurt. Heck this person might get in trouble (but I doubt it) for selling pics of copyrighted charas as the company isn't getting their cut. I'd also try emailing the seller (if you haven't done it already) and ask them nicely to please stop selling your work. Or give alla us KrisSK fans their email addy and we'll do it for you bwhahahahaha!