Pleeeease help sexing chamois polish chicks? Tia x

[lolafanau]

I have 3 chamois polish and 1 ayam cemani that are currently nearly 6 weeks old. In just over a week two of the polish are going to my mother in laws yard to live but ideally I'm looking to send any males to her and keep any pullets as shes set up for cockerels bit better than me being in a non residential area.
Swapping at a later date could be a possibility but I'd rather maintain the coop dynamics and try and determine gender now.
Any help massively appreciated!

1st pic :Bellatrix - Ayam Cemani (I'm 40% pullet 60%cockerel)???
2nd pic: Beyonce - Chamois Polish. At first I thought cockerel but now I havent a clue. Has same colours as its Dad. Sometimes chest bumps with the ayam cemani.
3rd pic : Pheobe - Chamois Polish. I'm leaning towards pullet. This one is the most chilled in temperament.
4th pic : Lilith - Chamois Polish. I've thought this little one was a cockerel from very early on. It's got much more of a mohawk on its head than others. Same colour as its dad.

 

[NatJ]

Polish are hard, with the crest hiding the comb and the beard both shrinking and hiding the wattles!

I've been squinting at the corner of the beak, where the wattles should start.
The first polish has much more red there, so I'm guessing cockerel.
The second polish is the palest at that point, so if you only keep one, I suggest keeping that one.
The third polish is in-between, so if you're giving away two, I'd give it away as well.

 

[lolafanau]

Polish are hard, with the crest hiding the comb and the beard both shrinking and hiding the wattles!

I've been squinting at the corner of the beak, where the wattles should start.
The first polish has much more red there, so I'm guessing cockerel.
The second polish is the palest at that point, so if you only keep one, I suggest keeping that one.
The third polish is in-between, so if you're giving away two, I'd give it away as well.

Thank you! Yes the pale one is the one I had planned on keeping so I'm glad that's possibly the right choice.