Mischa and Tom, thank you so much for your very generous comments. It was a lot of wok and there were many elements to coordinate. I guess I would call it a treatise on edge
quantity 
As for
quality, well, I'm never satisfied with my own work but I'm glad you see something worth looking at, Tom. It's so much easier for me to admire other people's work than my own.
Yes, I'll see you at the conference!