Here are four pieces I selected from the Bruce Pennington catalog. Bruce Pennington is a science fiction/fantasy novel cover artist. Much of his work can be found on the covers of Frank Herbert, Isaac Asimov, and Robert Heinlein books.
cover art for Tales of the Cthulhu Mythos Volume 1
cover art for The Green Brain by Frank Herbert
cover art for Beyond This Horizon by Robert Heinlein
For more about Bruce Pennington and his artwork go to this website The Art of Bruce Pennington.