What a delight! Love how you put the 4 checkerboards in the corners. When I saw the first one come up (slow internet tonight), I just knew where the other 3 would be; and of course Maple leaf in the center.
What I would do is:
1. 2nd row far right, the purple and gold Sawtooth; give it a flip so the purple is on the bottom.
2. 10th row toward the right, the rose and green Rainbow Flowers; give it a flip, too, either way with the square on top or bottom.
Just MHO. Wonderful sashes and cornerstones. Okay should go sew my blocks now. Haven't picked out fabrics yet!