First off...love the quilt!! Also, welcome to the quilt board!
I like the idea of the circles but if the print will be difficult to quilt through you might want to just do SID around the blocks and corner to corner inside the block (hope that makes sense). Then if you want to add some pizzazz, use a variegated thread and make a design on that dark border, like waves or flowers or some simple free motion.
What ever you decide it's going to look amazing! Be sure to post the finish!
