Such a lovely quilt. I am in awe that you hand pieced it :shock:
I think I would "Cross Hatch" it. I love cross hatching!!! Then in the border ummm, ...well I looked back on your top and I would cross the body of it then I would do vertical lines in the border. Just a thought! I think it would be in keeping with the style of your quilt.
Please let us all know what you choose either way it will be stunning!