Ikimashou

Come on, tell me what emotions and subtle details are hidden behind the facial expressions in this contest?

There wasn't an intention to prove that I can read the emotions of everyone, but:
1) Yes, there is a slight smile here, but it's more for making the photo look better. There's firmness and confidence in the gaze.
2) A sly, cunning smile with a hint of skepticism. Quite theatrical, of course.
3) It's hard to read anything here, except perhaps some slight fatigue and weariness.
4) Also difficult, it seems like there's some confusion or even a little sadness or fear -- but this could be an impression due to the angle and the fact that they're simulating blood.
5) The emotions aren't very pleasant, they seem cold (but this coldness is also an emotion).
6) Perhaps one of the least emotional ones, heh. She's clearly posing for the camera. However, you can note how her eyebrow is raised, an interesting detail when describing a person.
7) As I said, she's smiling with the corners of her mouth, quite calmly and pleasantly, and the reclining pose gives the same impression.
8) I don't know, there's too much going on here, and it's like an interview or something, not very conducive to describing emotions.
9) Well, she's smiling. Probably happy or wants to show that she is.
10) No comment.