I must admit water, i like this idea more than any others of yours
heres my thoughts on what it could use
1) I dont care for the solid white color, could you do a different color? or a texture? or maybe even a picture?
2) The flags are a nice touch
3) I like the zoomed in effect, but maybe put it into a box in which it also shows the surrounding territories? just so people know who can attack it
4) Also, on that note, it seems that if u hold the territory the zoomed in area is in, then you can attack all of the outside of the zoomed in territory, maybe make that big red territory that the zoomed in is in into a couple littler ones?
5) I like how u have the Germany (left) and Berlin (Below) thing, it makes it clearer
6) Some of the territs are to small to fit names/army numbers in for the zoomed in area, and are really pixely (the border lines)
hopefully more later
edit: ignore 4, i just read that the plane icons can attack berlin