3.5 week old mixed chick genders

[Cierrascoop]

Breed possibilities in these mixes include: marans, bielefelder, death layers, cinnamon queens, barred rock, olive eggers, welsummers, white and brown leghorns, cream crested legbars.
Three are definitely marans mixes as they have feathered legs, though only one has heavy feathering right now.

I found that 2 of my 9 were actually accidentally put with my mixes and are 2 full blooded bielefelder lol so that made sexing easy for them. So here are my remaining 7. I fear I have a lot of little cockerel here opinions?
I can take more photos of any of them if you need better ones.

 

[nuthatched]

2 and 7 look to be pullets.

 

[Cierrascoop]

Also, if anyone has any guesses for breed mixes.
The combinations could be

Hens: Marans, welsummers, leghorns, cream crested legbars, barred rock, Deathlayer, cinnamon queen, olive egger

Rooster option: Marans, welsummer, Deathlayer, bielefelder, or olive egger.

 

[Cierrascoop]

2 and 7 look to be pullets.

I am hopeful. Lol. I'll be updating in two weeks
I was fairly confident 2 was a cockerel but the comb growth kind of slowed down dramatically.