HELP! Gender of chickens

[EvaRay1525]

I need help identifying my Polish and Molted Houdan chickens. I am not too sure on how old they are but I am guessing they are both between 1-2 months old.
Mottled Houdan:

White Polish:

 

[LadiesAndJane]

Sorry they look too young still to me anyway! I would guess about 8 weeks at most.