I liked it.
I enjoyed watching that, great song, and the animation was quite interesting too, i love the graphic style you chose and the consistancy. It seems a lot of effort went into this. But overall i thought it was very good :D Look forward to seeing more.
Best bits:
-visualy interesting
-Attention to detail
-Nice pacing, i wasn't bored watching it.
Things to improve on:
-Animation, obviously it was mostly tweens, i'm not saying thats bad, would have liked to see a bit more FBF personaly, but anyway, theres potential to be awesome if you keep working on your animation skills.
-The main character, i understand if you want to keep him like a shadow but his scaling was slightly of, keep practising :)