Though New York based illustrator Chase Stone does editorial and conceptual illustration as well, he excels in particular at fantasy illustration.
One avenue for his fantastical imaginings is Magic: The Gathering, his illustrations for which are not only beautifully realized, but have a dramatic mythological flair.
His website is essentially a Tumblr blog. The gallery on the site of his Illustrators Representative, Richard Solomon, has a good sampling of his work, along with a process step-through. He also has a gallery on deviantART.