Erasmus, I like it! The features definitely do stand out.
- The large blue lines in the water and the white dotted lines mark territory boundaries? Took me a while of staring to notice them. So if they are indeed boundaries you might want to let them stand out more.
- Is there any point (gamewise) to the squares on the landmasses?
- Your desert look more muddy to me. Maybe make it a bit more yellow?