All done, and I am quite happy with it.
I think the leafy custom quilting gives life to the monotone green and is in keeping with the organic color. I used Aurifil #50wt. 100% cotton thread in a pale green.
The owner of this quilt sent me two rather similar green tops to quilt, the other will get an edge to edge design. These quilts go to Florida so the light weight Hobbs batting will be perfect for the warm climate.