I have taken crops from Deborah's photo to trial the fabrics in her quilt.
The 4 outer-corner applique blocks seem to disappear in this first photo.
I like the tan brown border below, but I think it is a "bit too much" and overpowers the applique blocks and the cq blocks.
I think that the lighter fabric border below makes the cq blocks the dominant feature.
Whereas, the thinner border fabrics in the lighter colour, and with very thin borders in the dark batik, really makes the applique stand out more.
Maybe an extra very thin batik border around the central 4 appliques would work too.