Yeah the 2 girls have a similar body type, and even faces are kind of masculine somehow, they're bony. I agree with UPD that Emma sends a sort of Fe (fakish) vibe, while Kirsten looks more Si and introverted to me, maybe she might be one SLI.. or SEI. Emma doesn't strike me much like an EII tbh...

I know I'm biased saying Fe is fakish but it relays on the environment's judgement so I don't know how to rephrase it better..