Decisions, Decisions!

I have started quilting the Indigo and Lace quilt.  The quilt has been stabilized by stitching in the ditch on both sides of all the sashing.  For the decorative part, for most of the quilt, I know what I want to do:  This!

Sew on the arches and triangles that are there on the front. MAYBE outline the "fluer de lis" in the corner.  (I tried it out on one square just to see if I'd like it, and I do.)  I'll be free motion quilting this quilt. Easy.   But for those big empty areas in the center and the corners.... I'm stymied!  It's such a big big area of nothingness!  I've been looking at it for days, searching other quilts on the Internet to see what I could do.  I took the pins out, picked up my chalk pencil and started sketching some ideas, right on the fabric:

I kept washing it off, and trying again.  Finally, I just had to STOP!  I started sketching on paper instead!

I know that I want to keep the corner-to-corner arch.  That ties it in with the rest of the quilt.  I've been studying how to sew feathers, but I don't want to use feathers here.  I don't want the center to be all cluttered up either.  Something simple.  I want some triangles too.. maybe around the edges?  I'm still in the thinking stage here, but the quilt won't get done till I figure it out.  I can't even get it started!!  Talk about Brain Freeze!