Add something to the land. It still looks really plain and boring.
Take a look at the Iceland map, it has a lot of snow areas and other things in the land, which you might not notice at first glance, but add a lot of effect. Or perhaps simply do what the Scotland map does with the darker colors around borders.
Just play around with some stuff.
A few other points:
1. "Denmark Strait" should be horizontal, or change the "Baffin Bay" to run along the edge of the continent too.
2. I would like to see the glacier texture more pronounced.
3. There is gray between Nord and Danmarkshavn (top right tip.), along with some other inlets.
I love the background, and your attack lines especially. Map looks great. Good luck with it.