Hmm.. looks nice - but basically I think it differs a bit too much from Civ-perspective. Or basically there shouldn't be perspective but some sort of projection.
I made some experiments with the landscape yesterday changing it to "space" and it was quite fine. I basically changed the sea to dark blue and added some planets, stars, meteors etc. Maybe the coast should be changed to look not so much coast.. but can't figure out what it could be. Maybe rocky or something.. Also deserts should be more "hot" like from Tatooine and tundras more icy. Polar caps aren't of course needed, changed them to black. I can send those to you tpasmall if you don't mind disturbing your work.. Maybe you can get some ideas out of 'em.
About those units, it's of course the most time consuming phase of making the mod but would it be a good idea to make just some kind of unit "mock-ups" first. I mean not making all the animations at once but instead making units only with default-state so that the whole game-system could be played and tested for balance, look&feel and consistency??
btw, I couldn't play that .bic-file. Any ideas why?