Well I like it - a LOT! In fact I like it so much I'm thinking that the pattern might be perfect for some fabric I've been saving for a OBW or a S&W.
Do you have some of the fabric that you used on the top left? I'd love to see it.
As far as quilting ideas, I'm not much help. If you do something consistently in the sashing it will unify the quilt blocks. Maybe some nice feathers in the border? If you were willing to do ruler work I might suggest some more triangles within the setting triangles, going right into the blue tops of those setting triangles.
I really, really, really like this quilt top.