That's gorgeous! Did you see the free pattern @ PB textiles?
http://static1.squarespace.com/stati...structions.pdf
Meant to be a pillow, but I'd resize it to be a block and make a quilt of those. Or the quilt they also have a pattern for; not my style, but could get some ideas from it.
Also - maybe Missouri Star Quilting's Quatrafoil quilt.