Blackfly - Christopher Hinton
Despite the characters having very basic designs, the entire animation captures detail with every action. For example, Hinton follows the cable lines closely. He generally uses close-up views opposed to wide shots, which I think goes hand-in-hand with the upbeat song. Because the view is so close, it allows the camera to move quickly, which matches the pace of the song.
Hinton uses a ton of scenes to organize his story. For a five-minute production such is this, one has to break it up in many scenes.
I definitely believe this was a successful animation, mainly because of the music being synchronized with the animations. That alone makes it visually appealing, but because the storyline was humorous too.