For this block I decided to try doing a block on a diagonal that wasn't down the center of the block (though that is hard to tell from this picture). I also like that the triangles stick up a little outside the half circles. I want to use that motif again sometime.
Also, notice that I'm using different length blanket stitches. The orange circle has much longer stitches than the yellow or purple pieces.
I hope you get to quilt today!