I can’t believe I haven't posted Zdzislaw Beksinski yet. He’s not my all time favorite, but these top three paintings are my favorite out of his extensive body of work. Such desolation!
Here is his official site: http://www.beksinski.pl/. Be sure to go to his “original works” and listen to the music they have playing. It is fantastically haunting.
Here is a blog of his work: http://zdzislawbeksinski.blogspot.com
And here is his Wikipedia page: http://en.wikipedia.org/wiki/Zdzislaw_Beksinski