Here it is. This is the most nearly plumb it will ever be. This Chickadee was kind enough to land here just as I was taking the picture - confirming that the structure may remain plumb in use and making the picture much more than I'd planned.
This picture lacks the sense of the water flowing from near the top of the curve and overflowing from the dish. I'll tinker with the shape a bit. But I like the musical implication of the clef-like curve.
Also, yesterday a honeybee came for a drink from the fish pool on the deck.
And many thanks to Belinda for figuring out for me how to include images and links to "What I'm reading" in the sidebar.