The first girl on the left has fine hair, face and two sides on round face similar so I can say she’s a sensitive, calm and cheerful person.
The man at her side has a thin upper lip and eyes together which says he is short-tempered and sarcastic.
The woman's large mouth with thin lips in the third picture tells us she have a gift for communication and is talkative.
Finally, the last man does not look ahead, he seems introverted or shy but his protruding chin tells us he has a competitive spirit.