Jacquemoe, that is a beeeaaauuutttiiifffuuulll quilt
I'm getting ready to make an Irish Chain -- thought I would do a celtic knot in the open space, then just cross hatch or X's in the chain. My chains are purples, so I thought I would do the celtic knot in a deep purple. Going to quilt by hand, but this should be fairly easy to do by machine.