A little about the girls.
Ak47 appears to be heavy Indica.
Sensi Star grows fast and appears to be 50/50. One of the Sensi's grows faster because the bought soil has the Ph more closer to optimum, than the other.
Caramelo grows slowly althought she has 2 weeks head start from the other 3. Maybe because her soil is nothing special. She is more of a Sativa.