I really don't see a mistake, but then not all of the quilt showed in the pic.I guess I am just missing something here or have no idea what it is supposed to look like. The only thing I can think of that I may be missing is that you have more strips on one end than on the other, but like I said, I can't see all of the quilt. Is that the error? Looks great to me, I think I would leave it like it is, especially since some of us don't seem to see an error, it must not be that noticeable. I love that pattern You did great on both quilts. Pretty colors.