A decent animation.
The story is just enough to reel the viewer in and keep them interested for the rather short run-time.
The joke wasn't too bad. I will admit that I did not expect the punchline. It was sort of funny, however, one thing that would probably help make this better is the voiceover. It sounds rather plain; there really is no feeling there. If maybe a little more feeling was put in, it would help make the short more engaging and the punchline would hit harder.
The art style is simple and the animation is fine, but that at least suits everything.
Overall, not bad.