Idea for thriller opening

Our group has picked idea 3 from our pitch as this idea was the more unique idea and was more possible then the other two ideas for location.

Idea 3 will be effective as it creates tension and suspense as the audience wonder what will happen to the girl, who the hand and clothes belongs to and why there is a big picture of her and her friends in the shack. This will fit to thriller genre conventions because this idea will create suspense as well as making the audience ask questions.

This idea is justified with the audience research I have done as the idea isn't cliche and it should be able to create tension and suspense, both of these my audience said makes a good thriller.