Now I have 25 of these Windowpane blocks. But I’m no closer to knowing what to do with them.

The blocks finish at 8 inches.
I hate adding to the UFO pile, but these just aren’t speaking to me now. I think they need to do some closet time.
Have a great day!

Yes, sometimes quilt blocks need to rest, and marinate before one tackles the next step with new inspiration.
I was going to suggest something along the lines of what Cathy K said.
Olive green sashing with beige cornerstones?
Love the blocks! What about doing a “Beth’s” (Yellowstone) quilt with a color alternate solid/small print/tone-on-tone block? Will be interesting what you eventually come up with!