[Zen]

First Impressions:

Abysia: Fantastic base. A good idea might be to have a little darker tone of the same style for the borders. It's light enough you can see and it doesn't obscure anything.

Atlantis: Great Flag Icon. I think the tileset might need to be a lighter blue or add in a lighter green. It is still a little too dark.

Pythium: A little dark. And a little heavy on the lens flare. Maybe there would be a way to mute the pure lens flare aspect. The style is nice though if you can get the right lighting.

Man: You might want to switch the Border color and the Inner Portion color. The Dark Green is hard to read. You also might want to add more treelike aspect if that is what you were going for.

Ulm: I like it, however because of how the pattern is broken up. It makes it harder to read things. It seems that edges break up right on key portions of words and numbers making it have a slight eye strain. This may just be a me thing.

C'tis: Hah, Dinosaur. It's probably just a me thing but I don't think that accurately represents C'tis. Maybe if it was a skull of a lizard head. No problems reading this one. Though it seems just a little bland. Perhaps you could make the borders sandy or wrapped in jungle vines to simulate the different aspects of C'tis.

Arcoscephale: Looks fine. I don't know what the icon is, but it's the same color as everything else. No real defining characteristic.

Caelum: Like the Icon. The colors are a little harsh. This style with the Arcoscephale color might be better. Especially since the Arcoscephale is semi-transparent.

Ermor: A little too busy for me. Makes it hard to read.

Marignon: Good Icon. Might be better if instead of the pure cross, you could take aspects of the Phoenix (?) Inside the cross and use it's wings on the crossbeam, etc. The background is great though, easy to see and has it's own unique style for the nation.

Pangaea: Good base but dark. A little hard to read the Unit Icons but other than that, pretty solid. I think if you just modified the center a little so it's lighter it would look fine. Suffers from the same effect as Arcosephale, no real defining imagry.