Deciding on a picture for my poster

After taking lots of images that I could possibly put on my poster, here are the best five images that I could use:

I asked people from my target audience which image they think is the best and the majority said the second picture as the characters face can not be seen, therefore it shows that this character is mysterious and it does not give it away who it is. Also the knife can clearly be seen which shows the genre of the film.