I like the colour scheme but I've always been fond of brownish tones. Also your landmass shapes are very pleasing to my eye. It might be worth lowering the opacity of the mountains so the tone matches the coastal outline more though.
I also think your text might benefit from the use of a very subtle creamy coloured outer glow or something similar, but that's just my personal aesthetic. Also your world Title text looks a bit weak because of how bold the sea and land labels are. I think either using less bold place labels or a heavier title would work better.
And your compass looks like something of an afterthought. Might work better a little larger in the bottom right.