I have been in the judging room of our quilt show for many years. The judge always tries to say something positive before she starts pointing out where the quilt should be improved. The problem she sees most is the binding. It must be full and straight. The sashing should be straight, the cornerstones must match the seams of the sashing. These are the main points where she writes constructive criticism. I usually have mine judged, although I rarely win a ribbon but it gives me something to work on in my next quilt.