Create rivers with ease
I made this brush to make the process of adding a river to backgrounds much easier. It's a base that can be drawn as squiggly as you like and distorted to fit the perspective of your environment, and have highlights, shadows, fish, stones etc added as you see fit.

I used a highlight brush for hair to make the water reflections, and the default cloud brush for the spray at the bottom of the waterfall.

I hope this brush is useful to you!
Good luck!