I think the top looks pretty darn good even though it still needs trimming. At 72" square, before trimming, it is already fairly large. The star border alone will add another 12" so this is going to be quite a big quilt by the time it is finished.
I think the next thing I will do is sew the star blocks into 4 columns/rows and then measure them. That will help me to determine what size I need the quilt top to be so that the stars will fit properly around it.
This quilt is coming together really quickly - I can't wait to see it finished. :)