While attending the "Quilting in the Garden" show in Livermore, Ca., I got to checking out the backs of quilts. Amazing what some of the backs looked like.
Sometimes it looked as if the quilter just put on left over fabrics that they didn't like! Sometimes the back coordinated with the front. Some had many seams and others were so careful to be certain everything was symmetrical.
Bottom line, in my opinion, it's anything goes! Don't worry! Be happy!! :lol: I think that's the *rule* for all quilting!!!