Your top is just stunning. Do you have a long arm quilter in mind? Are they local? I would set up a meeting with them, bring the top and ask to see some of their work. They will probably have some good suggestions. Also, be prepared to discuss the charges. Any custom quilting is going to be at a higher rate than an edge to edge.
Be aware, however, that this time of year unless you have an appointment made last month you may need to postpone this meeting until after the holidays. Most of the quilters around here are not taking any more tops.