Just to come back and say there is NO way I would FMQ these as front and back on a domestic. I don't think you would be able to get over all the seam humps on both sides. Too much thickness. And I FMQ'd on my Elna (6001 quilting version) for years (7 or so) before I got my sitdown Handiquilter Sweet Sixteen and I won't even try this on that one. Maybe a longarm where you can "stretch" the front back in a consistent manner and hold them taut.
But both really are beautiful!!