I have put on the border and it looks nice. Makes a big difference.
Bree's idea is REALLY cute, but those circles are calling to me. I'm thinking concentric circles in each block and then I'll do something to match in the border.
The idea of the serpentine down the centre of each strip I kind of like, too.
Nothing is carved in stone, so any other ideas are appreciated.
I wish I could do spirals, because I'd do an all-over spiral design.
Watson