I'd go for a bald liner pond but I'd also cover the liner with fabric and I know you only had white so that's a issue. Even though it's underwater I don't know about the desert sun baking at it will be a problem or not .Not yet, alas. I've been facing the dilemma of having only a fixed quantity of larger boulders to work with: do I use the best ones around the upper edge most visible from the viewing area or do I use them in the waterfall? So I'm trying out different combinations, then stepping across the pond to the viewing area and looking at them for a while. No good? Roll them out and try something else... Lots of rolling boulders to and fro, but not as much forward progress as I'd like.
I'm also trying to rig up some sort of pipe and slide apparatus to get three tonnes of river gravel down from the neighbor's yard...
Looking at the progress on @HayFam2022's pond is actually providing some much needed inspiration to keep plugging away. In the end, I'm pretty sure I'll need to do some scavenging of building sites for more rocks. Just need to get to the rocks before they haul it all away to landfill somewhere.
I almost have as much wood around the pond as I do stone. Though I'd be willing to be drift wood is as scares out there if not more so than boulders.
I have been doing the same with the boulders on the waterfall . It came out sweet but the pics are terrible I have to get a long exposure. The bog is almost done looking at it from the patio so I hear yea on place a couple step back and see how it looks but the real test is with the water.
In your case with the water restrictions and suck I'd look at those little mystery falls that poke out from here and there. Make the feed to the falls be interesting as well with some small steps enough to make the white water but not enough to splash.
You'll get there