Good effort.
This movie had very nice music that fits into the fight scenes, which is very good. Good sound effects too.
However, there are a number of things you can work on:
-The straps on his bag that he's carrying had the same color as his body. So it looks a bit like he has four arms of something.
-When the main character got shot, on the top-left corner there was a bubble and inside it were weapons switching. I just didn't get that.
-When he was climbing up the building after the building got blasted and got a big hole. You should have changed the color inside the hole and added a few details to make it seem like the inside of a building.
-Try to use thinner lines for the face and the diamond(anything small and with lots of detail really), otherwise if the lines are too thick it's unrealistic and a little unclear.
Overall it was above average. You've got the feel of an action movie, you just need to improve the art and the animation a bit.
Hope my review helped.