I'm in the process of making the quilt below. I've sewn the fat quarters together, right sides on all four edges, facing together. Then I cut them on the diagonal as directed and cut them into HSTs. Here is where I'm confused. I have fabric on the back, so is thatbwhatnthe back of the quilt will be, instead of maybe a solid color? Also, how do I sew the HSTs together when they are right sides up instead of right sides facing each other?