Next up is to add on the dark purple border, cut out backing and padding, possibly baste it a bit, then go about quilting over the branches/witch/bats with invisible thread. Then binding it.
I finished the thing!!! The back is just a large piece of black cotton I had. Basted it all together. Lots of quilting over omg small branches, which was a bit maddening, but not as bad as I had feared.