Mindful criticism needs to be taught repeatedly, for students to really reflect and feel comfortable doing it. When you start, it's a struggle. And often we don't give it the time we should. Having some structure to the process is a great idea. I like the idea of gamifing the process. As an art teacher I have used the Feldman process. I think it can be applied to multiple disciplines. I'm going to mull over your questions and get back to you when I can.