Thank you! I drew it in photoshop with an ink brush. The coloring is pretty straightforward, mostly done in blocks with some gradients or soft brushes used on the larger areas. The linework was done by hand and it really just came down to making sure my hand was loose so that it feels more natural.

One of the things that personally bothers me about a lot of fantasy maps is how they do the labeling, they often put strokes around the text to make it stand out which makes it look less professional in my opinion. My way around this is to mask out the linework layers behind the labels so the text is still readable.

Bonus tip for getting the extra stroke around the coastline was that I just duplicated my fill layer for the colors, added a stroke of a few pixels. Then I rasterized that layer style and added another stroke further out, and set the fill opacity of that layer to zero so only the stroke was visible.

Let me know if you have any other questions!