Thank you very much! It works well with my commitment issues. It won't be hard to undo when I change my mind about the shape, size, location - which I will soon or eventually. It's been there for 7...ish years so far. I got the bricks the same way, finding them buried in our yard and vacant lots where walkways & patios used to be. They're so much more interesting than new bricks.
Commitment issues are why I don't have many perennials. I want a different garden view every year - and a lot of big, colorful, tropical foliage. Plain green leaves are a real snooze to me. It was also a handy way to use a smother area instantly vs. waiting for death of the weeds underneath and decomposition of the OM used to do the smothering.