Dear CH,
"You can use the private Designer area for comments to a specific Designer. You can click on a Designer's username to go to their private comment area for that contest. Or you can provide feedback to all by way of the comment area for the contest. You can also send a PM (private message) - see below. "
please visit
https://logotournament.com/help/client/35 for more info on how to communicate with designer privately without exposing individual concepts to all.