I'm diggin' this, Chris! I think you did an outstanding job of filling each bubble and balancing out the entire composition. It's just a big surprise to look at!
Thanks everybody! This was fun. After seeing Fabs' wood stork snow globe, I downloaded Flexify, started playing with it, and found all sorts of images that look interesting when converted to bubbles (using the mirror ball conversion). Then I noticed that I had a lot of summer images from the same place, and this composite just jumped out at me.