This was pretty good
I could see this as a trailer for an upcoming full movie about Macbeth. The animation ran nicely and it was overall a very good one. However, I can see how this can be confusing to the people who don't know about Macbeth and the revealance between the story and your short movie.
Nevertheless, I enjoyed the short moment I spent watching your movie, and I'm sure your classmates and teacher will appreciate it too. Good job, keep it up!