I love your beautiful quilt! You have taken so much time on it. Why not go shopping and find a nice templet (or two) at the quilt store that would fit the mood of the quilt, look cool and try audiltioning something a little upscale into the design? Yes it will take a while to do. But you have a wonderful quilt there. Why not spend a few more days making it special?
The thing is you have to stop looking at the blocks and think of the design possibilities of the quilting. Go explore the shops and find something you love!