One thing I learned is that if you cut a rectangle and cut it on the diagonals, you do not get mirror images and so you do not get a tree! Instead, I folded the fabric right sides together, cut two rectangles, cut the diagonals, and got two trees from each fabric. Still scrappy.
Another thing I liked about this pattern is that the background triangle is bigger, so the tree you end up with has some border at the top and the sides instead of having the tree points touch the end of the block. That appealed to me.
It's a good size blanket. I hope she uses it on the ground for floor time for her baby (due next month). Can't quite believe I'll be a great aunt. Seems a little to close to grandmother age!