go into the person aboves profile and pick a photo that you want the person below you to critique. basically, it's a little over-rated to have people talk about all of your own photos so, we can all win here.
if anyone reads this, i guess it would be starting with me.
so go ahead and choose a photo from my port that you would like to see be critiqued by another person who comments underneath and then that person would have to go choose a photo from your port.. and then it continues on till people stop critiquing.
hope this makes sense, xoxo!