I'm struggling. The backing of the blue green quilt (my first pieced one) came totally naturally, but this one took me over an hour of laying out bits, moving them next to other bits, doing some math, disregarding, shifting again, over and over, till I worked something out.
I think I've got it all worked out now, so I have to go and sew.
But there's some diagonals. So I'll just be hoping for the best.