Wow that is neat, I bet when the sun hits it it has a really great prism rainbow effect too. And the mounting tubes do give it a bit of charactor.
I never know exactly where I want to do some future planned digging here, so I never have put in my little fish pond I keep planning to build some day. It will be into the base of a small hill and I plan to pipe water uphill so it looks like a spring feeding the pond. I may build your plexy wheel for it too. Will be facing the sun anyway.
If that is making a good splashing scattering the water into the pond it should be real good for keeping the water aired up too. Important for keeping fish alive.
I like yours much better probably than what I had planned. Was going to use old food cans cut in half down the sides for the cups and fasten to sheet metal wheels. All chromed and brass plated, since I can plate them myself. But I think I like your plexy one better.