Cockerel or pullet?

[pekin queen]

First two pictures are an EE that seems to be more aggressive to the other chicks and the boss chick but is very friendly to me. Not sure the age maybe 5 weeks

The last 2 pictures are my barred rock that is 4ish weeks and has a huge comb already and is super sweet. What do y'all think? Pullet or cockerel?

Oh no lol I'm also concerned about my other barred rock being a cockerel as well. She/He's always fighting with the EE . His/her feathers aren't coming in as fast as the others. Any idea if it's a pullet or cockerel?

all look like cockerels

 

[Miaowmiaowz]

Here they are a bit bigger . They are same age but have a different stance than each other. Still cockerel on both?

 

[pekin queen]

yup cockerels