So, I'll try to be fair: the animation needs some work: it looksstiff from time to time, especially the walking cycle. The detailed bits, the close ups, were generally well animated, so it's a pity. You should try to polish that. Another thing is that the voice acting was a little... lame. As someone said before, maybe you can contact some good VA from here.
All in all, however, even with all those things I commented on, I still think this is great. The topic was treated in a fairly fantastic fashion and I felt quite identified, personally. The little sarcastic bits in the dialogues, the hypocrisy of the people involved, that feeling of not being part of any group while it is almost mandatory to consume drugs to be cool... Excellent.