I am not a sessioned quilter. What size quit is your goal. When I look at the quilt in your photo, it seems the lower stars are smaller than the top, but I dought you made it that way. Maybe just the photo. A boader of some kind of print would draw your eyes to the middle. The material you have choosen is very plan, if you could find a print that had some of the same colors in it, would pull your colors all together. Or even if you make blocks for a boarder using the material that is in the quilt. I would make the next sash going down a size. I love stripes but I am not sure that would go well with the stars. Nice job keeping things squared. Good luck with your project. Be sure to post when your are finished it.