Im sorry but I dont get it. What is this guy doing? He opens a box of candies which fly away and then he gets angry (I guess), bites a huge chunk out of the ground and falls into a hole. Maybe you tried for random humor? My problem is that there is simply no connection at all between the things happening and I dont really think it works this way. Its just TOO random to work for me.
Then there is absolutely no sound and the animation is very crude. You seem to be aware of that (which is definitely a good thing) but still its just too simple. Of course not everybody can do as well as Stamper or Sexualobster and the like but I think this is still below the minimum that would be expected from the general audience.
Whew, I know this was a lot of criticism so please dont take it too personal. Just try to improve at least a little. Im sure with a little more effort put into it you could do way better. You seem to be a pretty self reflected person (seeing the title of this is "masterpiece") and I think this holds a great potential.
Nevertheless, I dont think I could rate this any higher. Especially when Im comparing it to other flash-movies out there.