Looks real good. And it will be terrific when it's quilted.
I'd probably avoid feathers. It has a masculine feel to me that I wouldn't want to feminize with feathers..
I would probably quilt a swirl (like a cinnabon) on the center of each star, and also on the pale blue. I'd quilt a ribbon curl on the points of the stars. I'd either do a bunch of straight diagonal lines on the dark blue to accentuate the area but really quilt them down. And dense quilting on the dark blue will make the stars pop up. I'd do C curls on the inner blue borders, stitch in the ditch on the middle border, and I'd quilt beadboard or piano keys on the outer border.
That's my 2 cents. I can't wait to see what you do with it! HAVE FUN!!!