Have you added him as a friend on facebook? He posts stuff that I haven't seen anywhere else on there. But if he accepts your friend request I'd ask his permission about reposting the art he posts on his facebook profile. But there are good "glimpses" of what he's working on.
Yeah I got him as a friend and usually check his page, I had almost no time to look after this tumblr except a few quick reblogs, but I will ask his permission for sure. The stuff he posts on facebook is amazing.