Ok, the chipmunk looking ones do have green colored legs and the one of the buff with black spots is showing like a green or gray tint on her leg, while the other that is similarly colored has pink legs.
I think #1 is a BO
2 possible Sex link
3 BA or BSL
4 possible SL
and 5 is def. not Speckled Sussex but more likely a golden laced something maybe a Wyandotte . could be butter cup chicks too kinda looks like the chicks on henderson breed chart.
Heres another view of one of the chipmunk marked ones and another black chick that has just a small amount of white and all black feet(bottoms too). Its a bit taller than the black chicks with yellow markings and they had black legs with pink toes whereas this one has always had all black legs/feet.