I've only had enough time to read a few pages, so don't know if this idea was given (probably not, because it is weird). IMHO I would stop at the green border and use the very bright blue for binding. I think the added yellow is too much. I think the blue would bring out the beautiful blue in the blocks. But as someone said, it all depends on what color you want to showcase. Good luck. It's a beautiful quilt top.