Drawing a game map experiment

Since I'm writing the code for a game map system, I needed some map assets to use, I decided it's a good time to learn how to draw maps.
It seems simple enough and my first try yielded some acceptable result. started with a 4k document in Photoshop and drawn some boarders with mouse. The shakiness of mouse drawing actually helped with the jagged lines needed for a map. Rivers where the same story.
After that it was time to add all of those little mountains, trees, cities and other small drawings that maps usually have, and that was the point I over did it again.
I've drawn too many mountain and tree icons (around 50 each) to place all over my map. I decided to create a high quality Photoshop brush set for creating maps and share the current set for free. CC-BY free.
you can download them from the attachments under this post:
https://www.patreon.com/posts/24611413

and here's a little preview: