...........Read please.
Art: Your drawings are decent. Your silhouette style is fitting for the theme. It could use much more detail though. Much more.
Animation: Nothing special, but it's not bad. It didn't have to be astonishing, so it worked for your movie. The foot bouncing off the water and the water's reaction was good. I'm assuming you did most of this frame by frame. Keep at it. The more you play with it, the better you will be. Please put a "Preloader" with your flash film. It's convenient for the audience. This way the movie can actually begin and end without playing by itself and constantly loop. It's annoying.
Style: Very good. Your transitions were excellent and flowed excellent with your art style.
Sound: The music was very fitting. Shading itself perfectly with your animation and your voice. Your voice was ok. Your intonations were mostly on par. Your mic quality was shoddy. I hope you can invest in a new microphone because your voice sounds nice. You should take advantage of it.
Overall - It's nothing special, but to be fair, it's nothing special to me. I bet it's special to you, since the film seems to have some sort of sentiment and reflection. As an audience though, it just a bit of bewilderment that has a negative affect. It feels too personal, which can be good, but in this case isn't. The end of the film was very abrupt. I hope you post more on NG. You have talent.
Note: I read your comment about people on this site being immature and rude. Yes, you are correct, but you're mostly going to find that everywhere. Newgrounds doesn't exactly promote itself as being a site for maturity. A giant portion of the NG staff are suckers for "cock jokes" (no pun intended) and so am I. Even so, creativity in all aspects whether it be cock jokes, personal reflection, or weird/strange exist here. Also, consider that you're a girl on a website that is populated by 90% males and most of them are teenagers. My suggestion is to post your work here regardless of unnecessary negative feedback.
Cheers!