This the BEST I've seen yet!
You did a great job on the faces and hands. I think that you could have done a little better on the bullet scene. You should make the background lines straight so that it gives a better bullet speed effect. You also could have done a little better on the beginning scene where there is a tree on the left and the building on the right. What was the first guy looking at? You probably do your next film on the guy going to the "shiny background thing?" You could have played with the volume a little better. For instance, keep the volume low at the beginning and then when the sniper is about to shoot get louder. The music should be at it's highest when the sniper gets shot and then fade out to a certain volume at the end. These are just suggestions. I'm not trying to say that you aren't good at it, because obviously you are. I can't wait until you put out more like this!