Sergey Tyukanov
Many fantastic drawings and paintings of architecture, animals, shoes and people mixed together into surreal combinations.

Link found thanks to BibliOdyssey.

Marcel Ruijters

Click here to see a preview of his book "Machina Mundana".

Click here to see one of his paintings.

Elina Merenmies
These paintings and drawings show people in a deformed grotesque light. Wounds spray blood from strange flesh. The portrayal of humans as abstracted and deformed chunks of meat is very bizarre. And the portraits are haunting and freakish.

2nd gallery and interview
3rd gallery and interview
4th gallery

Click here to see one of her paintings.

And a few more ink drawings here and here.

Hillary Brace
Here is a collection of some of the strangest environments I've ever seen. Hillary draws these incredibly detailed cloud landscapes in charcoal.

Richard Powers
Powers brought surrealism to the science fiction book cover. By blending science fiction imagery with the surreal style he created a unique look that set a standard for science fiction book covers.
2nd Gallery
3rd Gallery
You can find a wide variety of his work at this site.
Click below for a few additional examples of his work.
Pic 1
Pic 2
Pic 3
Pic 4

Derek Thompson
Lots of colorful monster paintings in this gallery. The "Monster Vault" has a count of 121 monster paintings/drawings in it.