I found a free pattern at Walmart for a flag-type quilt. I thought it would be very appropriate for my grandson, who is currently working to achieve his Eagle Scout rank. After I made the quilt up using three flags wide and five flags tall and added the suggested sashing, I knew it needed "something" to make it pop a little more. I went online and found a "mod" version of a spread-winged eagle. I printed out fifteen copies and pinned them to the quilt top, centering each one of the flag blocks. I free-motioned along the lines of the eagle, then tore the paper away. Each flag was emblazoned with an eagle on it. I did some SITD along the edges of the flags. The eagles really made the quilt very special. My grandson will not sleep at night without his quilt on the bed -- even in the summer!
Your quilt top is so beautiful that it probably doesn't need any more than the suggestions made here. I am very jealous of your straight lines and perfectly formed stars.