sunflower126, just want to give you a pearl of wisdom that I received from my very best buddy that taught me this disease (quilting). Rene says:
"If the quilt is not going into the Smithsonian, and it isn't featured on Antiques Road Show, then perfection is in the eye of the beholder". In lay man terms, it isn't that serious. If your sister enjoys the quilt, then go with it. I did my first pinwheel and used stripes-wrong answer! I showed it to my husband, who promptly pointed out the stripes that were going in the wrong direction. I still do pinwheels, but don't use stripes.
The quilt is beautiful.