help with gender please (pic heavy)

[Trixie27FL]

I have 3 chickens that are 7 weeks old. They were sold to me as Ameracaunas but I know they are EE's. What I don't know is their gender. They seem to look different than all of the pics I see of EE's and two of them are almost completely red so I can't tell if they are roo's because their shoulders are red like their whole body! Also, it looks like they have 4 rows in their combs, not 3? I'm confused and would appreciate any help at all. thank you!!! Also my hubby is holding them up so I could get a close up so I added one pic of the three sitting down so their wings weren't sprawled out.

1st one is Buffy





2nd one is Brandy




Last one is Peep

 

[never_ending_fermata]

1 and 2 are boys and 3 is a girl

 

[Fleabuskitty]

1 and 2 are boys and 3 is a girl

x2, the red on their shoulders is far too dark for a pullet.

 

[hdowden]

1 and 2 are deffently cockerels 3 im iffy on coloration says pullet while redness of comb says cockerel

 

[pixiedouglas]

2 boys and 1 girl, last one is a pullet

 

[Happy Chooks]

2 boys and 1 girl, last one is a pullet

Ditto