Feedback on draft edit thriller opening

We got feedback on our draft edit of the thriller opening to allow us to make certain changes to areas of the sequence that we would not have originally have seen. Everyone commented upon the lack of music however we did originally put music on but we are unsure on why this isn’t working. Another comment that was made was the sight of a finger over the lens during the 30/34 seconds mark; these shots will have to be re-filmed as it looks extremely unprofessional.  Another class mate said “I think you need to sort out the credits, Daisy’s and Rosie’s ‘starring’ names look good because they’re towards the side of the screen but Tom’s is in the middle which looks a little odd.” There were also comments made about the lack of some production company’s names, directors, etc. this can be easily altered through “Adobe Premiere Pro”. There were also suggestive comments made about the ending scene by making more of the sequence by trying to start with a pan or tilt in the garage.