I love that quilt! It's beautiful and I agree that a thin red border would be wonderful, followed by another. I think it would look great just like that, but if you want it bigger, then go with the smaller LC blocks if you're so inclined. I see a few said they would make it more rectangular. I, personally, see nothing wrong with it being square, but it depends on how you want to use it. If it's to be a bedcover, you might need to "rectangularize" it.