I loved all of it. Smooth animation, original story, and nice music. The frame by frame animation when the lights were out was beautiful. I also liked how the music synced with most of the animation. It made a better experience.The silhouette animations were very interesting and looked very good also.
One thing I didn't really like was the character designs for the boy and the grandpa. But all of the other character designs were very good. I think Tarboy could have had a little more detail though.
It was a very good film and has a pretty deserving score at the moment. (4.79 for the record) Also, you ended the movie with a nice twist which made it better. It opens it up for a sequel very nicely. I'm looking forward to it! Great job.