Interesting, Iminei, I do like what you've done with yours. I might play around with mine a bit more before sewing any seams. I might make it rectangular rather than square. Good thing I took the photo, I was just looking at it again and I noticed I've got a couple of blocks on the edge going the wrong way. Why is it that it's so obvious and glaring once you spot it?!
And thanks, everyone else, for the comments. I will get there!