Before Final Forge, there at least needs to be a large and small version. I do have a couple of suggestions before that stage though.
Some of the objects on the map seem a bit poor in quality. Maybe it's just my eyes, or an effect on the arrows, but the normal and bombardment arrows look a bit blurry to me. They kind of have a fuzzy edge to them that gives them a look of being scaled up poorly.
The river doesn't seem to flow all the way to the ocean or blend into it. Also, rivers are generally smooth, but this one looks a bit out of sorts. It also seems to have some effect applied to it that makes it look more like a blue worm stretching across France, rather than a river.
The mountains don't quite look right to me either. I guess some of it has to do with scale, compare them to the other impassables. It's almost as if they're too small and sharp. The borders and some of the impassable objects have a nice soft edge and feel to them and work really well. The mountains kind of grab my attention, but not in a good way.
Perhaps a slightly nicer title wouldn't be out of the question? Also, I'm not sure where the fluro green comes into the legend for the top three bonuses. Perhaps a more subtle colour would be more appropriate?