I am a newbie but I have to RIRs. Mine are only about 9 weeks old but it was clear about a month ago that one lady was a guy. Lucy actually looks a lot like yours-she has a smaller comb and her feathering is more red w/ no dark feathers. Ethel (renamed by my husband, as Ken-lol) has a taller comb, wattles well developed, some dark feathers on his wings, longer feathers on the wing tips, and dark feathers in his longer tail. They have a bit of a beetle blue sheen to them and he definatly carries that strutting posture. I am new at this, but yours look more like my pullet, then the cockerel.