I can't figure this one out. I'm thinking it could be a cockerel because of the pinker comb and feathers on the neck, but I don't know for sure. He/she is a little more than 3 months old. Out of curiosity, when are the pointed saddle feathers supposed to come in?
Were she a cockerel, at this age you'd be seeing the start of hackle and saddle feathers. They might not be long and pointy yet, but they'd be shiny and stand out. It would also have darker buff shading on the wings, and be leggier/taller. Plus a redder, plumper comb.