Teen, I saw Winter and Summer, not Spring or Autumn.
I had another look at the GW strips and studied the one with the white/off white/light grey strips again. There's no cohesion in the quilt, it looks like the blocks are scattered on a white piece of fabric.
I think I know why the block with the dark blue starry fabric looks out of place. It's not that block, it's the Crazy Anne block. The white fabric with the light blue dots needs to be replaced! So that's what I'm going to do. The Starry Night block can stay..........
One more strip and section 10 is done. I just need to decide what colour to use for that strip.