Bats!

I know it's way late for anything Halloween but I have a friend who loves Halloween and this is perfect for her birthday. I saw this tutorial and had to try it, she has great instructions. The only thing I changed was the amounts of fabric for group A and B. I wanted to have my color groups checkerboard so I did 14 for group A and 13 for group B Here's a photo of my finished block.

My only nit pick is that my block didn't square up to 18½" as she suggests in step #10. My block fell just shy and I'm not sure if this is from some of the stretch in the fabric or perhaps each vertical seam should be sewn with a scant ¼" seam. I prefer a little wiggle room to square these things up.
I was planning on making this into a pillow for my friend and an 18" pillow form would have worked perfect but now I'm not sure I can make it fit. I will most likely make another one of these blocks and I will definitely adjust my seam allowance.
Thanks for reading♥