Zozee - what a cute quilt! This is my go-to easy quilting that looks great on a lot of quilts - just use the edge of your walking foot to stitch along the seam line. It is so much easier than stitch in the ditch! I often just use white thread for a clean fresh look - on this quilt I used a variegated teal, purple and blue thread because it matched the backing. As you can see you can hardly tell what color it is!