Debbie you can do beautiful quilting without using free-motion quilting. For example if you google quilting stencils you will see all sorts of lovely designs done with a walking foot. For example, basket-weave cable, diamond cable etc., I think Rosemary's suggestion is a good one. The piece is saying diamond cable to me - you could make it 3 diamonds and then rectangular or curved cables in between or something like that. I try to do as much of my quilting with the walking foot as possible so that I can keep the frustration to a minimum. I did a couple of quilts recently and used a diamond cable in the borders with my walking foot. And if the curve is gradual then you can use the walking foot for that too. But I would definitely start with SID around all the seams, after which anything you add will be a bonus because it will already be quilted enough by then. Show us when you are done won't you?