I hope this review is not going to be harsh, but let me tell you your mistakes (make sure that you know this is just an opinion). First of all, there was only very tiny details in the background, there was only a trash can next to the table and computer, I don't think there was a bed in the background, even a door.
This is pretty much common or non-unique, the microphone was quality was not that good either, well I wouldn't mind if the microphone had a bad quality if, you at least got an average voice actor, by the sound of it you just slapped on your voice into the animation. Ah, the mainstream, "fat guy who spits everywhere behind his computer all the time", I mean I guess that joke was funny the first 100 times, but it's getting pretty old. Also, the way he intensely click the mouse, were you trying to make it funny? Now back to the details. You only focused on the main character, and main object, heck even the main object did not get all the details. For example, Facebook, you did not add the advertisement bar in the side, or shit like those. I don't really have much anything to say anymore, because I wanna cut you some slack here, since, it's your first animation. I think it would have been more helpful, if you started showing your animation to the public, instead of automatically joining a contest. But hey, it's your choice, I'm just giving you some taste of feed back.
Good luck on your future animation!