Your lineart is always super neat and clear, it looks nice! There is something about the coastlines on the former map or the ocean around them that bother me a tiny bit - I can't say for sure if I think they are a little too bright compared to the deep green-ish hue of the ocean. Maybe the rings around them together with the softer light coloring together is a bit too much...? I'm not certain.

The problem doesn't really persist in the second map, whatever it is. I love how delicate the linework is in that one.