The profile picture chicken is some sort of Red Sex Link or Production Red for sure. Basically what that is, is a mix between a Rhode Island Red and some other high-yeild layer (a lot of times white leghorn, but not always).
The pictures of the chickens below are Easter Eggers. EE's are mixes between Ameracaunas and another breed of chicken, which can be pretty random. They're a lot like Ameracaunas, but they don't follow breed standards so they're kind of their own thing. Those are pretty common lacing patterns and colors for EE's, plus at least one of them had green leg, which indicates EE. The one in the way back in both pictures may be a red sex link or something along those lines, but I can't really tell because it is behind the other two.