Darcy, I love your project but am unable to help in any way with improving it! What you've already done is super dooper awesome!
In pale comparison, here's my other project from the box of pre-cut squares, these are all metallic embellished in some way and I'm calling the project "Scrap Metal". I haven't played around with the design yet, I needed to see what I had. What I am seeing is that the light triangles stick out so brightly I might as well make them into squares so that is what I did in the picture. I think there will be some sort of sashing or framing of the blocks, currently all the raw edges are on bias. Blocks will finish at 7". I was hoping to use the long piece of fabric for the sashing, but I think the dark ones disappear too much.
For convenience and now that you've seen the projects, here are the inspirations,
Confetti Quilt:
How to Do ... ?
Scrap Metal (2nd picture, first post)
my quilting this summer