Really good!
This cartoon was really enjoyable. It was very mature and much unlike the rest of the stuff on Newgrounds. Instead of comedic nonsense, this was a very serious, respectable submission. The voice acting needed much work as you probably already know from others' reviews. Also, you need to work a bit on proportions of the human body. You're still very good at drawing and animating people, but with movements such as Jenny running away from Zack at the dance-well, that needed a bit more work. But I know that's hard to do -- It's easy to draw a picture of a person running and it looking very realistic in proportions, but when you have to animate it, it gets very difficult to keep the same sizes and shapes on every frame.
So yes, this was a great submission. I gave it a 5, which it surely deserved. Keep up the good work!
--Flashmaster