For dubstep, this work is too sluggish. If you want to write music in this style, download some third-party plug-ins like Serum for example and learn how to work on them. And I would advise you to use more dynamic drum samples. And in addition, in any genre of dubstep music, except trap or future bass, the key figure is the bass. Here you have a melodic dubstep, but there is no bass in it at all, or rather they are, but they are too weak to feel. In the beginning, it's good that you decided to use samples that imitate at least some orchestral instruments. However, this is only an analog form, for real such cinema you need more serious samples. Unfortunately, I can't put more than 6 points.