Great top! The piano ket border would look great with swag quilting to mimic the tiny red detail. It would also look great quilted with beadboard. I would outline stitch your tulip sections and find a triangular design for in between.
I am stuck right now on quilting a top too. I am doing a scalloped border and I really want to do half feathers in it but my pieced blocks are all angular. I kind of like to use somewhat the same quilting designs in the body of the quilt as I have in the border. Should I ignore the angles and do feathered wreaths in the blocks or keep looking, it is sitting on my design board too.