Normally I vote according to the aesthetic beauty of a map or the originality of a map but this time I decided to vote according to my own (admittedly arbitrary) estimation of how well the entry fit the criteria. Had I voted for beauty/originality, as I usually do, my votes would be totally different and that's what makes this challenge so hard to judge. Also, if I were voting for the aesthetics I'd have to choose 10 or 12 and hence I fell back on the criteria to try to limit my choices. Great job everyone! Even though many of us know diddly about sci-fi stuff it's nice to see that we can take our skillset and apply it to different genres. I think the winner is the challenge itself.