I'm still working on this quilt, and today I finished the quilt back! It's pieced, like the front, just not as complicated. :) As you can see, I did decide to toss that section of Marimekko(-esque? I got it secondhand) knit fabric, in favor of a different print. Two prints, actually!
Amusingly, the floor of my art studio is barely big enough to lay out this quilt!