I think 1 and 3 are pullets, and 2 and 4 are roos.
I think this from what I can see in the pics.
#1 has a nice size comb and #3 has a nice red comb, but I can't see any rooster feathers. Red comb on a hen normally means at point of lay.
#2 seems to have a bigger comb than #1 and #3, also I see saddle feathers. Also seems to have thicker legs than #3 in the pic with them together
#4 comb does not say much but he does have saddle feathers.
I think this from what I can see in the pics.
#1 has a nice size comb and #3 has a nice red comb, but I can't see any rooster feathers. Red comb on a hen normally means at point of lay.
#2 seems to have a bigger comb than #1 and #3, also I see saddle feathers. Also seems to have thicker legs than #3 in the pic with them together
#4 comb does not say much but he does have saddle feathers.