Frank, great thinking out of the box! The Droste effect is perfect for this image and . . . you nailed it.
I am going to put you on the spot (again). How did you do it? Did you use the Pixel Bender plug-in? I love the Droste effect but I don't seem to be able to get it right. I tried Pixel Bender (in PS CS5) a few times and gave up.
Photoshop Elements 7, Photoshop Elements 10 through 2021 Photoshop 2020 & Lightroom Classic Windows 10 Pro