I have a question for you - You said you enlarged the blocks. I have a pattern for snowball blocks that are 4 inches. I was trying to figure out how much bigger to make the corner squares if I enlarged to 5 inches. What size did you make and what size are your corner squares.
I like your idea of doing a pieced back. Sounds crazy, but I hadn't really thought of that. How are you quilting it? Since the front and back are different patterns I'm wondering what you would do.