Within our Guild of 40 women, those that entered quilts at the county fair were marked down for bindings more than anything else. Keep them full and naturally use double fabric folded, never single. The other thing was a small unclipped thread showing. Of course there was a judge once say the fabric design chosen was not conclusive with the pattern but what the hey---it was a beautiful quilt we all thought. Good Luck. Enter and learn. There is no shame in that.