Look at some of these images for some ideas for direction on this quilt.
https://www.google.com/search?q=phoe...iw=890&bih=409
To me, this quilt has become too dark and is crying for the addition of the original blue *and* sunny yellow.
Since the phoenix, a bird associated with the sun, has "risen from the ashes", why not take him into the sky in the last border? Maybe a large, bright sun in one or more corners.
Send another pic when you decide and have finished your border!
Jan in VA