In addition to the African fabrics, I used a cool orange-blue variable weave cotton for the border (thanks Margie for the gift certificate for Fabrications!), and used a thick variegated purple-orange-yellow cotton thread to do some simple quilting lines along the border and in the centre panel. I decided to make binding out of the border fabric-- not sure if I love that decision, but makes for a clean look. And I used a thick cotton bedsheet for the backing (thank you Value Village!)
Happy to have this ready to use, and on to the next project!