I like to go by saddle feathers since sometimes a pullet can still sport a red or largish comb. Ive had chicks look entirely like cockerels turn out to be pullets since they had a lot of red or a large comb when young, but end up with hen and rounded feathers. 2nd one sorta looks pullet to me, the 1st pic is hard to tell off the bat, maybe a cockerel. Maybe if there can be more angles shown?There combs are quite large and very red. The second one looks like it could be a pullet, but i dont think so.