Yesterday I got several questions in the comments about the paper pieces. As you can see, yes, you take them out before you sew the blocks down. It's a pretty easy job. They slip right out.
Yes, the paper pieces come already made. I got these from Connecting Threads with the kit but I usually get mine from Paper Pieces. They have a much larger selection and lots of inspiration. They also host some amazing quilt alongs.
Today, with the blocks done and the papers out, I wrestled with the background material.
I can't sew a straight line with a sewing machine to save my life and working with those tiny strips was no fun. It took a few times to get them to an acceptable place. There is a tiny 1 inch green square in the center of those strips which was ridiculously fiddly to line up. You can't even see it so next time I'll skip it.
Now I am worried about those outside edges. I swear I cut the material to the right size but that's not giving me much to work with for the binding. Next time around I'm adding an extra half inch on all sides.