I think you'd want them in the same order so when it's done it looks unified. Not explaining well, but you know how some scrappy quilts make your eyes go nuts because there's nothing to unify the pattern? That might happen with the DWR. If you have a design wall, maybe cut out and audition the fabrics in different places and see what's best. Sometimes I do this with colored paper if I don't have extra fabric. Good luck and have fun!