And yet you submitted it. I wouldn't be too surprised by the outcome of your animation in the portal, would you?
The animation was non existent, a simple set of tweens to create the illusion of movement and the same repetitive running cycle. I mean, you could of at least made them transparent so they didn't overlap each other?
The background music annoyed me as well, you didn't have time to put in some effort for basic voice acting yet you stuck in some form of sound anyway, another show at your lack of effort in this animation.
In the future, spend a little more time on this, build a background, make it realistic. The art of animation is to allude the viewer into thinking they are somewhere else, you won't do that with some sprites and a blue background.