Not bad!
Hey Buddy, It's not too bad. I was impressed with the drawings of the Hydralisks, and also by the drawing of the marines. The sound was pretty cool, and pretty clear. I found it pretty serious (also ties in with the looney).
My Suggestions:
1. Get some sound from the actual game. (It might sound pretty cool if you add the Marine machine gun sound to it. It also might sound good if you add some of the hydralisk sound to it.
2. Make the blood more realistic. Also, make the blood come out continously and possibly add some lines to make it look like its forming a puddle.
Other than that, it was pretty cool.