Sew your 5 strips together into a strip set. Sub-cut into 6 inch sets (that's what it looks like to me). Cut at a 60 degree angle. Add the background (white) - I would cut a 6 1/2" x 3 inch piece then trim to whatever you decide the size should be, probably 6 1/2" x 8 1/2"??? Does that help??
Jane