I agree with speckled, nilla looks like fine strapping lad, the EE, could still go either way, I have ameraucana hens that have one or two rooish feathers in their tails, and i have some that are around 13 weeks, and I con only tell sexes on some, and only by comparison, the boys are starting to get taller than the girls, and while there isn't much comb growth, their's are getting pinker more quickly. I'd pullet as of right now.