You should fix Aeosta and Genoa names. In the italian language they are Aosta and Genova.
Stripes on Nice have a different green color.
Blue and green of Savoy come out from the edge on the Swiss border
Bastia/Ajaccio border needs a small fix on the right side.
About luxemburg, i must admit that the color choice doesn't seem the best one. Try to follow the RedBaron's advice, you should only make it less noticeable.

Then i would suggest to clarify in the best way possibile (on both maps) that you should control/hold for one round the shields/crosses to win the game.
Looking forward your next update

Nobodies