Give it a thicker tail and longer hair in a ponytail. D= Also, give it a skirt and corset.Make the ears smaller, too.
Overlaying colored crap over your images won't stop a thief, you're wasting your time and annoying anyone trying to get a clear look at stuff. Someone who really wants to steal your stuff will steal your stuff no matter how many steps you go through to prevent them. Coloring rainbow crap over your images won't help you get your problems solved should you be ripped off, either.