Criticism, hmm...
Well, for the most part, it was confusing: What made him in a hurry after he woke up? Who was that guy/gal sleeping next to him? Why did he turn half super saiyan after he saw the janitor? And what does the janitor even say? His only line is so hard to understand not only because the quality is bad, but also the voice actor is too shy to say it out loud? The voice acting of the whole animation is not good because of the same reason, shyness. Close your room, and scream just for the heck of it. Like, the scene of the half super saiyan thing wasn't vocally convincing because of the voice acting. It's as if you're voice acting in a very, very small apartment in mid-night and you don't want to wake up anyone. When you ant to do somthing like that, make your scream sound intimidating. make your voice acting believable. As for the animation itself, the poses definitely need some work, for example when the main character entered the building and became exhausted, the pose of exhaustion looked quite off because the propotions are off. just compare that pose to real life pictures and you'll notice the difference. You need to learn to use references every now and then, if not always. Get a sketch book and keep drawing poses you see from real life. They don't have to be perfect, even gestures can do the trick. Next thing is the motion, you see, the timing is off. And that shows in when the guy got off of the the car and went to the building while running. The said running animation looks off because the timing wasn't right. in case you can't see it, the run should have been slightly slower. Maybe some inbetweens could have done it. And perhaps ironing out the poses, as I said.
So, generally, you're off to a good start, you're still new to animation, so you have lots to learn. This means that you have so much room for improvement and i'm sure you'll get somewhere if you keep going the right path.