RIR hen or roo? Bantam chicks?

[UpindaSoo]

I got these 2 RIR from my local Tsc. They are supposed to be pullets. Help identify please. Of the 2 bantams we got, 1 is a lot darker on the chest so. I have no idea what they are. I think pic 1/5 is a female, 3/4 male? I believe they are about 4 weeks old. Thanks for the help. Pic #1

 

[countrygirl345]

From the size of the comb, pic 4 looks like a roo. The second and 6th pictures dont even look like any RIRs ive seen, are they of the same bird?

 

[UpindaSoo]

The ill black ones are a bantam, I think they are sebrights...? Ones chest is almost all black.

 

[Cyan Night]

Picture four looks like a roo. And your bantams look like gold laced sebrights

 

[BantamLover21]

Picture four looks like a roo. And your bantams look like gold laced sebrights

I agree.