We've probably all seen some of Frank Frazetta's work. Back when quality still counted when it came to book covers, movie posters, and pin ups of Arnold Swarzinegger, Frank Frazetta's paintings were everywhere. He's done a huge amount of work for the Conan the Barbarian franchise, as well as the "Vacation" series, and Tarzan. While most of his work follows a pretty firm theme of monsters, tits, swords, and sweat, they're all fabulous and very well rendered, despite the metal bikinis. If you're thinking this may just be art for meathead fantasy jerk offs, I have to give Franzetta some credit for his love of powerful weapon-wielding women who definitely make up for the damsels in distress. Anyway, these are some of the best fantasy paintings I've found, and I've yet to see anyone match him in painting sweaty muscles. Enjoy.
Frazetta died a few years ago, but his work lives on through his estate, which runs his website with literally hundreds of photos in a dozen galleries: