Unit 042: Collection - Assassination scene

A WIP from one of the scenes in a large animation project I have been working on called Unit 042: Collection. This is a scene where our hero, Unit 042 (the blue robot) assassinates one of the guards on the space station he's infiltrating. The guard robot is a placeholder, being just a Hue shifted copy of Unit 042 right now, but I am working on a custom model using the same rig that I will replace them with later on.
Everything is hand animated, so there's still a lot of room for improvement, but i'm learning quickly.
There's a lot to add to the beginning and end of the animation, so the end looks a little weird right now, as there's more characters and action to add yet.