I rarely use one fabric for the back of any of my quilts....unless they are very small ones, and even then....The professional way, I have been told is to break up the back into thirds and have three strips vertically or horizontally. I like to use four fabrics. I sew two together and lay them down vertically, then sew two other fabrics together and lay them down vertically next to the first two BUT not with points matching! They relate to the front in fabric and color and it makes the quilt reversible to have something so pretty on both sides. Sometimes I even start the label on the front and bring it around to the back so you know it can be used on both sides. It's interesting and innovative. The label becomes an intricate part of the quilt I have lovingly made for someone. Good luck. The only way we limit ourselves is to say NO to our imagination! Go for it! :lol: