I've been working on the mystery quilt, too, with a late start and many interruptions. After several layouts, my husband picked dark symmetry - and without seeing your lovely examples! I bought twill tape, but the store didn't have enough of any one colour, so I mixed them, hoping it would be hidden in the quilt. So now I think I'll make some bias binding :evil: which I hate pressing. When the instruction said "think ocean or oriental", I thought desert.
Without the curves fastened down yet, I tried variations to see whether I liked the dark or light framed better. It's interesting to see how the same pattern looks so different simply by turning the curves.
The final design chosen.
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What it looks like with dark centers.
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I kind of liked this one; it reminded me of the desert ripples.
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