Nice map or great starting point. I'm sure you have devoted a terrifying number of hours into this map, because of all the labeling in it. However, I need to second ChickPea's main comment - the map is too repetitive because town placement is so even. I have recently come across
this map, which resembles yours in style, and I went for a second look so I could comment on your own creation. The main difference, to my eyes, is that rivers and significant mountains are strongly marked, whereas in your case, rivers are there but nearly invisible.
Darker rivers and coastline, a little more variation in towns density and some decorations over the sea would make this great, imho!