First of all, I don't think your scrappy quilt needs a border, unless you want to make it bigger. It's lovely just as it is. And your Hunter's Stars are the wonderful start of a scrappy Hunter's Star quilt, so I would probably make a bunch more of them. Until you put 4 together you don't see the arrows that give the Hunter's Star the first part of the name. You could put them with this quilt (if the colors are right, hard to tell from the pictures) but I don't think they will have the impact that you want after all that work.