First let me say that it's a very lovely quilt! Next, I can see a large meander done on the background, then using the meander as a spine I would quilt feathers on either side of the spine. Depending on the size of the dragonflies, I might stitch a little on top of them, maybe to draw attention to their wings. I would probably outline stitch the blue "ribbon" - keeping the stitching on the blue but not on the area that is turned back. Does this make any sense?