Potential
Well that was good. Now considering these idiotic so-called "reviews" written below, I'd like to offer some constructive criticism.
Video:
The drawing was crisp, but I think the animation could've been a little more fluid. I would suggest spending more time drawing extra frames and bumping up the frame rate.
Audio:
This series would be nothing without the music. Very fitting and the music levels were mixed well. The sound effects weren't implemented as well though. For example, there should've been some sort of impact sound accompanying Harut's punches. Not the overused "arcade" punch sound, but something appropriate. At other parts, the effects were drowned out by the music like the wall crashing and pencil scribbling, so try to balance the volume levels between music and effects.
Story:
I don't know what you have in store later in the series, but I'd like to know more about this shady "mentor's" background. Maybe set up an episode, where we take a look into his past.
Overall, this series seems to be planned well and if it improves these weaknesses, it may well become a Newgrounds staple.