Wow...that's pretty bold to be so downright exact to the original and to use Etsy's interface. I wonder if you could e-mail Etsy to see if they can get the site to change interfacing? That's horrible they are stealing so many people's photos. Unfortunately, it's a growing practice to claim work as your own when it's not.
I don't think there is much to be done. You can probably sue them if they are making money off of the photos of yours, which, if people are buying, I am guessing this is so. I don't know all the legal processes, laws, etc but you might be able to look it up.