I just looked at the perps ebay page and she has seemingly built herself quite a business stealing others intellectual property. Hundreds if not thousands of examples of her selling other peoples images and I am sure this is not the first time someone has called her out on it. A serial copyright violator that at some point needs taken to task.
BTW, an image is copyrighted the moment you take the picture. It doesn't need to have the © symbol on it to say that it is copyrighted. All the © does is serve as fair warning that you know that your images have value, and that value will be fought for with unauthorized use. Again, it doesn't need to exist for the images to be copyrighted, just letting the thieves know the hammer will fall if they do.
For Michelle, this person is devaluing your product. If I were looking for a savannah, and I'm on your site and see an image scattered across the internet and ebay, I could conceivably walk away with the perception the kitten you are trying to sell me is not your own. That truly sucks and I would send her a cease and desist letter. If it's something that you want to pursue send me a note and I'll get you a copy of the shot over the bow letter my wife uses.