Well, your regional map mixes miles and kilometres, so right off I'd say that's one thing to be careful of, keeping your units constant. Otherwise, the map looks fine for a start, if a little bit bland - although it might just be my laptop screen - but the colours are very muted and the labels very discrete. If this is a style you're aiming for, then you're good with that. It really depends what information you are trying to convey at the world-map level.

Your coastlines look good, if in places very fragmented - but suddenly, NW of your Gulf of Gods, you have a peninsula that seems just incredibly plain and the coastline looks artificial. So, that might need a bit of a tweak.