Need opinions on gender of 7 mixed chicks 2 weeks old please :)

[EIEIO_farm]

I’m looking for some help identifying the gender of these 7 baby chicks. They were hatched for my 1st grader’s class to learn all about chickens and how eggs develop into babies. We have 7, and they are all approximately 12 days old. Some are part silkie and and others are a mix of Orpington, Wyandotte, and Ayam Cemani.
please see attached photos. (I posted two of each chick so the first two photos are chick 1, second two photos are chick 2, and so on) Thank you!! ❤

 

[Chicken Chicken Love]

Way 2 young to know gender

 

[Painted Calls]

Much too young. Post updated pictures in 4-6 weeks.