Audience feedback is important!

I'm not sure if I have previously stated this so here it is:
My target audience is of a teenage audience to young adults.
The genre is suspense thriller.

As it is the audience who is most important when creating a product, I think that I will need to get some feedback from my target audience (easy as my class is full of them) and will give them a survey with different versions of the posters I will design. I will design three different versions, one of which I have already posted, and ask advice on them in my little survey. Typical questions I may wish to include could be:

• Which poster do you feel is the best?
• Do you feel that this one catches your eye well enough? If not, why?
• What colours do you expect this poster to include to fit in with the thriller genre?
• Is the title big enough?
• Does it, at a glance, fit in with the expected conventions of a film poster?
• Does it, at a glance, fit in with the expected conventions of a thriller poster?
• What do you think this film will be like, i.e. what would expect the story to be like, after seeing this poster?

I will hand this survey out to about 10 people and will record the results and take the advice on board. Majority would always necessarily rule; if I feel some of the minority have given better advice which makes more sense than the majority giving obvious answers, I will listen to that. If I do not feel that the feedback has been as constructive as it could have been, I will hand out more and consider rephrasing the questions or changing them completely to get what I want from it.