Hubby says that it needs a floral design in the black spaces to tie in the borders. I think he has a good eye for that was what I was thinking too. He surprised me to say that from the couch behind me in the room. He is a non quilter, but has seen many a quilt go though here. LOL!
I also thought a appliqued vine with multi-colored leaves would be fun up the middle of the black spaces.