When I first saw the top, my immediate reaction was "Oh, let's play!" This is the perfect quilt to do some custom on and Judith agreed.
I used a traditional-type thread (SoFine) on this one, both top and bottom.
This is a close-up, sorta, of the medallion. Those big corners were just jumping up and down, yelling "Feathers! Feathers! We want Feathers!" Can't deny a corner, can you?
A real-close-up of one of the corners. I broke up that big corner triangle into 3 sections and went from there. Small green border got a back-and-forth leaf treatment, and the yellow/gold medallion border with the green cornerstones got a rambling feather treatment.
The backing looks cool from this angle, doesn't it?