This has been happening for years, people will take any Berserk art like fan colourings and such from the internet and try and make a profit from it. That Zodd one I've seen on eBay so many times, it's usually sold as a poster. I checked this guy out and he says it's officially licensed artwork. Yeah I doubt that. He just saved an image from the internet lol. But I doubt anyone can do anything about it sadly.