There is some great stuff at fantasticanimation blog... Andrey Khrzhanovskiy's The Glass Harmonica, above, and Christy Karacas' Space War, up top... mixed in with some really gnarly icky stuff I don't care for ... plus Richard Sala, whom I just don't get.
As a bonus, there's an animated Bosch painting. Do you really want to to see an Hieronymous Bosch painting get all animated? Think about it for a second. Bosch. In motion. With a Buckethead soundtrack.
I think Bosch would have done a similar job himself, frankly. He may even have worked with Buckethead. Really makes a person want to avoid hell, if you ask me.