A good foundation of a 'Double Dragon' style game, with some decent character art and animations. Being able to walk on a 3rd Axis using a 2D perspective was something I wasn't aware of initially but was well implemented on the whole.
I don't believe a health system or 'lose condition' is within the game as I couldn't seem to die at times which did make the game incredibly simple. In addition, it did seem at times that the player attack happened the instant a button was pressed which is fine if the animation didn't make it seem like it would attack at once. Keep your visuals and in-game data consistent.
On the whole, this submission is entirely serviceable with some room for improvement, but is largely functional and visually appealing. Perhaps consider what you could have done with the time you were given and what went right and some improvements that could be made. Good effort.