eleran, for me the repeating fill in the land texture is a real problem - you can see the underlying pattern (you have used a subtle noise texture for the sea which is much better). With the forest, rather than using the square tree clump symbol, mix it up a bit more, put in some little clearings and vary the density a bit - makes it look more hand drawn. Again you can see the repeating tile. If you want to make maps look hand drawn, repeating tiles are one of your worst enemies. Get rid of those and your map will look a million times better.

The font you're using looks like some sort of variant of comic sans, which I would avoid in labeling a fantasy map.

Good luck and keep posting your results, it would be interesting to see how the map comes together!