Please help me figure out who is a hen or a rooster?

[Koreydavisstem25]

New to Chickens and have been raising them since babies but can’t figure out who is a hen or rooster?

 

[Mamatomany123]

I'm o ly seeing 1 cockerel, in the second picture, the one with the big comb and wattles.

 

[Rhodebar Lover]

I think there's only one as well. The RIR

 

[Koreydavisstem25]

Thank y’all so much for your help wasn’t forsure and didn’t wanna keep more than one boy!