So, this didn't take long, and I'll be happy to adjust it (as I have the 'water' template for recolor adjusting saved.. but a little piece of advice?
Please specify in your requests.
"Yellow" is broad description in terms of colors and especially for water.
Neon Yellow? Muddy Yellow? Bright Yellow? True Yellow? Thick Yellow? How natural is this yellow river supposed to look? Golden Yellow? Maybe even post an example with your request.
Not trying to sound rude.. we are just a bunch of folks who enjoy helping and creating for the community, so the more information you have, the better. That way we don't feel like we have to do the same work more than once.
Anyway! Here's a "yellow river". Please let me know if you want it adjusted and how you'd want it adjusted.
No credit necessary. My general terms don't apply.
-MIAView attachment 256991