Help sexing three 6 and a half week old chicks (1 ayam cemani, 2 mixes)

[Evelynn Averia]

We have 15 chicks currently, we're not sure what gender these three are, so figured I'd ask for help! You can view the pictures below for more information and pictures of the chicks in question. All of them are much shyer than the other chicks, though we believe they MIGHT be males, we hope there's a small chance they're pullets, lol.

Only reason I'm asking is because they're more henish than the other roosters we have

 

[HorseGirlAbby]

I'm leaning pullet for Onyx, and Jupiter and Tabby are definite cockerels. That's a lot of comb development for so young.

 

[Evelynn Averia]

I'm leaning pullet for Onyx, and Jupiter and Tabby are definite cockerels. That's a lot of comb development for so young.

Thank you! Jupiter and Tabby are definitely cockerels, I just had hope they were hens because they had thinner feet and a more withdrawn personality But, thanks yet again for assuring me!