Copper Maran Hen or Rooster?

[ChickMagoo]

Rooster or Hen? 12 weeks old
On looks alone... what do you think? Copper Maran breed I believe (the seller thought so anyways)
Thanks for your help!

 

[Gray Farms]

Cockerel, doesn't look like a Black Copper Marans though. Maybe need better pics.

 

[Lydia Huizenga]

Cockerel. Marans should have feathed feet. Maybe a mix?

 

[ChickMagoo]

Oh wow
Thanks for helping me out. I have 7 chickens total. Can y’all help me with the other 6? I’m not sure if they are hens or roosters. I numbered them 1-7 so you can refer to them.

I got a little better picture of the rooster for you so maybe we can get a better idea of the breed. I know I have the following breeds but the rest I am not sure of.

Buff Orpington
Black Austrolorp
Not sure-
Copper Maran