well...
I'm not an animator (I make music instead) but its not hard for me to imagine how hard it is to make animations which is part of the reason I don't...
It seems to me this is something made to show only feelings which might be why many other people here will look at this and go "what?")
The music is pretty good and fitting, the voice while it is fair, I don't hear DEEP feeling to it, give a slightly wider range in tone, it will add to the dramatic effect. As does more voice - try to give the guy some voice
Judging by the detail you either have crappy drawing tools, you don't have REALLY in depth Ideas of how it should look, or most of what you try to draw doesn't come out the way you want it and you just make do with what you can.
(I'm assuming the third one is most likely the case)
By the way (as you probably already know) not all people on NG are jerks although while there are many zero-bomers (people who'll give your work a zero for no real reason), there are some nice people who will give you real opinions (like me).