A queen is 60 inches across. I can see if you are going 3 wide where the center of the outer two blocks should line up on the edges of the bed. Stunning display for those pointy motifs hanging over the edge. I would keep the sashing small, just enough to give you that bit of separation (and eliminate hair raising point matching issues) and let the natural design delight your bedroom decorating scheme.
Yes, I think like this as I am planning out a quilt.
tim in san jose