I just commissioned (like, ten minutes ago) the way-too-young-to-be-so-good Jeremy Enecio for one of our Tor.com stories. (No, I won't say who the story is by...although I will say that it's one of my favorites so far.) I was introduced to Jeremy by Sam Weber at the Society of illustrators' student exhibition. The guy just graduated this past May but it's clear he'll be a superstar.
While poking around his website I found this time lapse digital demo he created--it's interesting to see how similar his process is to Dan Dos Santos' traditional oil painting demo.