I like PaperPrincess' idea a lot. It would give you 8 smaller blocks with the intense blue background to disperse. Right now, they look a bit overpowering. I would look for a modern print in fall colors (something that has some green in it). The corner stones could be the same colors as in the rings. Then when it is sashed and assembled, you evaluate if it calls for full circled to be appliqued (or inset) throughout. It will be a wonderful modern quilt and creatively yours.