JillNJo ... WOW! Why so shy and in the closet til now?
You've done a wonderful job and they look oh so nice together.
Sashing? .... you know what? I kind of like what you have there already! It looks so soft and light, more feminine like. Yes, it's carpet, but what about a neutral in a similar grey or maybe a little bit darker? A tone on tone? Or a nothing print that reads as solid or tone on tone?
Or if you want darker and maybe a bit more dramatic, what about the brick red you've used in the quilt? or the burgundy?
I considered a bright navy for mine, before deciding on the green. That might be nice too ... or the steely mid blue?
Try auditioning with different fabrics from your stash or pack up your blocks and head off to your LQS to try some there.
I think the sashing can make or break our work to look better or destroy it. I'm quite happy with my green, though not totally convinced all is right when I start adding in the cornerstones and setting triangles.
Glad to have you along with us for FWS. Are you going to start the PC too?