I too am making an unusually long quilt, for a dear friend who stands 6'4", and her dearest wish is to have a quilt that she can tuck in, and still have it around her shoulders. Sometimes a quilt just needs to be a certain size and sometimes a 'quiltee' wants it that way. All I know is that my quilts never are exactly the size I aim for, and that is OK with me. Your quilt is gorgeous!