@ Thurlor: Thank you; and as I wrote, all "Dune" references are done on purpose.

@ Neyjour: Thank you. As for the colours, I was a little worried since there are so many of them (especially for factions shields and troops). I’m pleased you liked it!

@ Psylence: Thank you. The circular border is not as original as idea, at least if you have played the dune boardgame (that I strongly recommend, by the way, if you're into boardgames: it's an ameritrash bloodfest so full of tensions battles, politics, alliances and betrayal, you'll end up feeling as evil and perverted as Vladimir Harkonnen.
As for the dunes, you're right, it's the same repeating pattern, but I wasn't looking for diversity there, or at least I didn't think a little bit of diversity could be an improvement of the map. Next time tell me before I finish !
And as for the spaceports, well I badly wanted them and I thought they should be isometrical like the settlements.