Welcome to the Guild and congratulations for posting your first map!

It is indeed a great map. Wonderful style and execution - I personally like the way you did the mountains.

The river... yes, it is weird. The style is very nice, but no self-respecting river would ever behave in that way.
The fonts... also a problem. I can see what you tried to do here, but the multitude of different styles just gives the map a very noisy feel.