Film Opening Screenings - Audience Feedback

We recently showcased a rough cut of our film to our media class. This was very productives as we received positive feedback and good suggestions as to how we could improve our opening sequence.
During the critique the class told us that whilst the characters,continuity and the control of the narrative was good as they were able to follow the narrative and understood the themes,there were unnecessary shots and the duration of certain shots were too long which made the sequence drag on slightly and took away the element of suspense.
It was suggested that we cut a lot of this unnecessary footage out,cut more frequently to set a faster pace which will add to the suspense. Another suggestion was to add non diegetic sound as the current film only has diegetic sound. Adding non diegetic sound will add drama and tension and will generally give the sequence a more professional feel. The soundtrack to the film will become one of our main priorities as we wrap up the editing. We are currently searching for copyright free tracks and making our own music on Garageband to add into the film. The group also felt that our credits needed more work as the names flashed up too quickly and the font didn't fit in with the theme of the film.
The film's title has been changed from 141 to Oblivious as we felt it had more relevance to the film.