Your on the right track.
This was decent because your drawings were good. You have enough artistic talent to make something like this work. Don't get me wrong, the idea was good. I liked the death by sneezes idea. Very funny. Especially the first one. :D And your animation was nicely done as well. Very smooth from beginning to end. The biggest problem was the voice acting. It was really bad. Have a girl do the girl voices instead of doing it yourself. That would help a lot. And get a few friends to do a few of the characters. That way there is some diversity in what we are hearing. The quality of the sound wan't bad. You just need to get some different voices for your different characters. This movie was a little humorous, so that helped out your score a little. Basically decent job on this. Good luck in your future flash movies.