Look like them to me, also. The chick on the left is a roo, top right is pullet and I am not sure about the bottom right- I would guess a roo, but I hope I am wrong - then you will have a trio !
I am sexing them by the amount of white on the top of the head. Not the legs.
I'm thinking a roo for sure and possibly two fems. They look like doms to me.
My doms are not as gentle as my brahmas or orpingtons but not evil. well except for the rooster- we call him sergeant and are a little afraid of him. But he takes great care of his girls.
Lynne