Can anyone help me determine the sex of my "girls

[Frazzemrat1]

The one in back in the first pick and in the front in the second look like they have pointed saddle feathers...

 

[Redhead Rae]

The middle one in the last picture may be a pullet. the comb is more pink than red. the other 2 look like males.

 

[Chicken Girl1]

The first is a definite cockerels, I'm pretty the other three are as well.

 

[Ducksandchickens]

I think all four are cockerels