All rivers flow to the sea..

[baba]

This started as my first attempt of using the image map shader. Then I added some stones and vegetation.I'm not happy with the little stones, but i thought I'd share.. 

[Henry Blewer]

Welcome! I like the concept. Did you use a displacement shader for the water courses? I think making the water course banks a little deeper would look more natural.
This is pretty darn good for a first render. I hope you continue working with this for a while.

[EoinArmstrong]

Interesting pov and colours.  The terrain itself is a little too obviously fractalled - perhaps add more octaves?

[domdib]

It's a nicely designed water course. Don't worry too much about the small stones - mastering the fake stones shader takes a while - I know I need to work on it