Quilts are so much work, I realize this is something you love to do, but if your sister is that picky I wouldn't bother with her. I love the fabrics your husband picked out. Make it for yourself, if you don't like it when it's done then give it to the sister that was thrilled that you wanted to make her a quilt in the first place. Unappreciative people are a waste of time, there are too many others who would LOVE to have a handmade quilt.