I don't know admittedly very much about Joe Jusko. His art is found http://comicartfans.com/GalleryDetail.asp?GCat=1950 in such places, and at other sites associated with the man. I haven't found much to indicate who he is or where he's from, but I recently stumbled onto a ton of Tarzan paintings from the man.
It's rare to have a visceral reaction where I immediately think, "Yeh, this is pretty much what Tarzan would look like." And I'm not a big believer in the beefcake overmuscled hulk to indicate anything to do with power and strength in characters (see Superman, who shouldn't look like a body-builder...what is he using to build his muscles up with? He's super strong, naturally, and aside from being a bruiser at his height/weight, he's not going to look all cut and sh*t.) Still, Jusko has some awesome stuff going on here. I can't help but be impressed.