All of the shown pics are beautiful. Linda, I think your quilt is beautiful. I would do the sashing on the sides and the tone on tone green should be perfect.

Linda....your quilt is gorgeous. Jennie at MSQC did a sashing ideas tutorial and this was one of them. I don't recall if there was a pattern name for it. Here's the link and, as you can see, your sashing is on the quilt behind her. And, green would be perfect.

https://m.youtube.com/watch?v=Il2qSv-lWtE

Jan... Your quilt rocks, girl. That is beautiful!

Thank you, Teen. It is one of my favorites. I designed the quilt. The blocks were from a Block of the Month I ran for our local guild one year with patterns I wrote. It took a while for me to put the quilt together when the BOM was done, I let it be a WIP for a couple of years. I discovered the 9 patch border, even on point, didn't quite fit the quilt, but that is always just an opportunity for design options for me and is the reason I made the different and blue sides.

Jan in VA

Isn't it interesting how changing the color or the orientation of a block can change the whole look of a quilt?!
One of my favorites to do that with is what I call a tri-square triangle (like a half square triangle but with 3 triangles in it). Think of the different ways that can be colored and then what you can do with those squares!
Here are a few examples I've drawn.

Jan in VA