Edit: Seems like the problem got taken care of, their account has been deactivated. :End edit:
Guess who got famous enough to get their art stolen? = D
Seems like someone liked this old thing of mine enough to repost it and claim it as their own <da:thumb id="555146625"/>
That person stole couple of pictures, so if you go through their gallery and find someone else's artwork, which I guarantee you will, please let the original artist know.
Do me the favour and don't shit on them. Simply report their artwork as good as possible and make other people aware that this is stolen.