The Spindle's End

While Stewart has done a lot of work for a little game called Magic the Gathering, you might have heard of it, he's also done several wonderful epic and high fantasy covers. In 2010 he won a Chesley Award (the premier award for SFF illustration work), and has been featured in the Spectrum Annual several times. You can peruse his gallery of work here, and even buy prints on his Etsy shop.