Blue: Ice cold and somewhat aggressively selfish but it’s really a front to cover up a soft, calm and vulnerable side. Perhaps something happened to her to make her act cold. She wishes she could escape that, but confronts it instead. She’s superstitious, and also likes to abide by the rules.
Green: This isn’t the life kind of green. This is a poisonous, toxic person who might’ve been the other kind of life-green at one point, but is now broken, upset, cynical and has put up a very toxic front to this. He distrusts people and has a lot of pent-up anger.
Orange: Puts up an almost artistically energetic front, but this is only a cover-up to the fact that he is depressed, hurt, and sees no way out. There’s barely a ray of hope left in him and he’s shut down to things getting better for him.
Purple: Hopeless romantic, but isn’t passive about it. She’s actually prone to some obsession, and despite all the romanticism, she’s pretty wild. She’s a temptress as well as a romantic, and has seen enough to have her feelings kind of hardened. This hardened, brave way of being, unlike the others, isn’t a front. Her softness is the front.
Pink: Seems cute at first glance, but this girl is tough. She’s competitive, and she’s merciless at it. Possibly lived a rough life, and despite the cuteness in the first impression, she’s got a tough front. She’s confident, and she’s wise to the ways of people. I’m guessing she has at least some sort of spiritual sensitivity. She’s also a creative type, and beneath the cute first impression and then tough girl front, lies a creative, soft, vulnerable person.
Yellow: If there are powers involved here, this one’s the powerful one. Something happened to her, making her act as though she cares about nothing now. To an extent, this is now true. Her vision of the world is distorted, but deep down she knows this. Her attitude of seeming to not care is due to the fact that she’s afraid she could become a monster like those who hurt her. In reality, she’s a simple girl, who would enjoy simple pleasures, very down-to-earth.
Red: He’s charismatic and charming at first… typical psychopath. He’s cold and calculating, and very educated… but also possibly a murderer. He’s romantic in flair, but not in feelings. He’s possibly at the very least hurt people psychologically in very bad ways, and he’s too far gone in this way to actually be redeemable anymore. He plays dirty and is a scheming manipulator.
(note that I wrote these before reading the rest of the topic. For authenticity, you know)