I like the cover to #41, but the others are random, anonymous 'could be anything' covers. Not really what one looks for in a comic cover - the part which should make you want to buy the book.
(The others are not unlike 'this is not the Dark Crystal' movie posters: the only thing it tells you about the movie is that it has humans in it.)
Completely countering what I just said, I'm thinking it'd be cool if somebody re-did every 10th cover to be just a close-up of somebody's face, to continue the tradition from #10, #20, and #40.
~ Le Messor
"Failure is simply the opportunity to begin again, this time more intelligently."
~ Henry Ford