First is a pullet for sure.. but breed is going to be hard. If she grows a black tail, maybe a New Hampshire, if white, for sure a "red sex link"- basically a hybrid for brown egg production.
Second- Redcap pullet. You will get lots responses saying this is a rooster because she is a bit shiny and has a large comb for her age- but red cap is a breed with huge combs so her comb is going to fool those who sex based on comb size. She is a pullet because roosters of this breed has a different color pattern and a boy would have had a much bigger comb too.
Third- Black sex link pullet. Hybrid for easy sexing at hatch and good layer of brown eggs.
Last picture shows ALL pullets. Two Redcaps, one black sex link, the all black hen might be also a black sex link or a black rock. Not sure what the solid light brown hen in far back is(same as first pic).