Changing nicks may induce other problems, too. If a merchant knows that RnRWoman bought a product, but not that you are the same person as RockNRollN (example), then an image posted with a store-bought prop might raise questions... and some merchants do jump the gun because they have been burned badly and often. Also if you sign your name differently but have the same style, people may think that you are a plagiarist. This is especially true if you post your iamges in more than one gallery. I remember when Daio changed her name and there were a flurry of messages to her saying that this other person was ripping her off. Sometimes it is just smoother adn less confusing for everybody to keep the name you are known by. That said... adding a logotype or an icon to your artistic signature may help differentiate you at least as far as the galleries go. Carolly