If she really wants those colors, my opinion would be to rethink doing a wedding ring. It is a difficult pattern let alone if you are doing a very large quilt. I have seen a lot of Wedding Ring quilts and I can't see this old design working with modern colors. I would certainly include her in choosing a quilt pattern. Make her a double wedding ring as a table runner. Keep it simple because you are going to be quite busy as the mother of the bride. Vest Wishes !!