Help with Easter Egger gender

[Slm318]

These birds have me totally confused. They were purchased as pullets but I am worried about their comb redness. I’m new with pea combs and EEs...so any help?? The gray one is Skunky, the lightest one is Gertrude, and the one with the reddish head is Treehouse. They are 7 weeks old.

 

[Ihavesomechickens]

They all appear to be females. My EE pullets have pretty red combs but theirs are a lot smaller then my EE cockerel.
EE cockerel comb:

 

[Slm318]

Thanks for the helpful photo. I can definitely see the difference!