First edit of my music video

This is my first edit for my music video, although I like some parts of it such as the beginning I feel that a lot could be improved for it to be the best it can be.  From putting it all together I have found that a lot of my footage is too long and would bore the audience at times therefore I need to film more and cut on the beat so that there is more going on. I understand that it is a slow song however there is still a beat which I can cut to so I would like to maintain the slowness of it as well as cutting to the beat to improve the large amounts of the same footage and add some depth to it.