almost, if not, all of his gallery is stolen from other people, and he's posting pictures as stocks. I noticed that no one had pointed this out to you yet, so I thought I would before you gave him more praise he doesn't deserve, not your fault though. Don't feel bad.
I know, I didn't know this person at all, until someone I watch posted a poll saying how this guy and a couple others were posting stuff wrong and stealing stuff. I checked them out and realized she's right. I reported all the pics I could find a link to the original. If you look at some of "his" best works most people have posted at least 1 link to the original. If you report it as a permission issue then it works. I wish the stolen option was just "this was stolen" as opposed to "my art was stolen", that would make things that much simpler.