Wondering genders

[Bigsonstinypets]

Dear BYC folks. I am wondering about the genders of my 4 Tractor Supply chicks. They are about 8 weeks. They are supposed to be two Orpington and two Black Sex Links. However I’m not so sure if I got two BSLs. Anyway these are the pictures.

 

[arwoon]

I think I see two cockerels, the rest pullets