Lovely!!
I envision small glass beads of complimentary (or contrasting?) color to the feathers ... perhaps at the end of the "spine" that travels into each feather petal, and in the pebbles that go up the center spine (clusters of beads), and the same clusters of beads in the centers of the flowers.
Also something to think about ... at 20X24 your quilt qualifies as a "mini" at a lot of shows .... including AQS Paducah!