Roo or hen?

Hi, I would love some identification if pullet or cockerel? I for sure know the grey has to be a pullet and one of my older BCM(red waddle and comb) has to be a roo.

Photo # 1: Roo
Photo # 2 & 3: Hen?
Photo # 4 & 5?
Photo # 6 & 7?
Photo # 8: Hen
Photo # 9: Roo? (Younger than the rest)

Silkies
Black silkie photo # 10 & 11: ?
White/grey silkie photo number 12/13:?