Are you planning on quilting this yourself? Or sending it to a long-armer?
The reason I ask is: I've only had one quilt done by a long-armer and oh my!! She brought it to life. Told her to do whatever she thought was right. My only requirement was not too heavy on the quilting. It was a black & white with small touches of red. She quilted it in lime green thread. Totally impressed with how she saw it.