You got it. Both genders will have pun feathers developing but females will have rounded ends and males will have pointed ends like a fine paint brush. Can't go by sheen until you know your breed as some breeds have super glossy laced feathers on both sexes. Usually color can be a good indicator...
I've learned to not trust face color/ combs/wattles until you KNOW the breed characteristics as they develop. Leg thickness, same thing - I swore I had a flock of cockerel sussexes once but the pullets were mixed in there with monster sized legs and upright stance just like the boys. NOW I can...
Oh my, their little flared neck feathers are so dang cute! But those shiny colorful feathers along the back are suspect saddle feathers. Please post more as they mature. I just love looking at this breed. Never had one.
:pop