Love that fabric and what you did with it.
I'm not sure about sashing these beautiful blocks. I kind of like the way each block becomes a surprise as you see it and how they blend but not quite and all the movement is great. I think a very narrow black sashing would be nice and give a little control the movement in this quilt (which I love). Another quilt posted earlier this week with a sashing ? and the idea of grouping 4 blocks together and sashing around them was suggested. I think this same idea would be great here. Just keep it narrow so as not to overpower the blocks!
Love it!
peace :D
I know it is a lot of work, but if you could try adjusting the blocks so they butt up right next to each other, a better idea of how they would look without sashing would be a great help in deciding. Right now it looks like white sashing between the blocks.