Of the three competitions I've judged this has been by far the highest standard of beers, so everyone that entered deserves some credit.
I will send feedback shortly - just need to transfer it from my spreadsheet into a message for each entrant.
I've used the BJCP scoresheets and my own experiences of entering BJCP competitions to score each beer - anything above 30 is a very good beer, 38 and above is an excellent beer.