Sophia: she's protective, a germaohobic, disgusts humans,and  just wants you gone.

Izzy: she's mean, evil hates humans, likes to crush them and toy with them and sometimes eat them, and she wants to crush and or eat you, whatever works for her.

Kayla: she's rough, curious about humans, sometimes will crush humans if necessary, and wants to dissect and examine you.

Elizabeth: irresponsible, childish, immature, she  just wants to keep you as a pet and or play with you like a toy, maybe both.