Whoa. I've been on comic competition organising teams as part of my previous day job- don't envy you the work you have cut out for ya But hey there's a first time for everyone, so kudos!
I'd suggest releasing the criteria for judging/ disqualification latest together with the eventual top ten list to add some transparency to the process...but it's your- and the jury team's- call. All the best, and look forward to following up on this one!