Meh
It was alright, the only thing that annoys me was, of course, it's length. But it was obvious that you traced the animation. Stilll though, it was a pretty good outcome. But maybe have some original concept to it rather than just full on tracing. Maybe actually draw the character sniping and how he snipes rather than only his view. Add some of your own artwork design into it.
Keep trying though. :)