I'm not familiar with the SOP for white Ameraucana, but those legs look light to me in comparison to my Am's. But mine are the Lavender and Black variety.
I will be surprised if someone thinks they are girls.... but I could be wrong.
Never had a female Ameraucana that red that young that was a girl.
Also, the long tail feather is going to be a sickle before long if I had to guess, on the side view one.