While I'm impressed, there is room for improvement. My main problem is the voice in the song. It just didn't feel strong enough, almost like the guy singing didn't know he was being recorded, but rather just singing a song stuck in his head while he's home alone. Also, you say it is "a song about zombies and their 'monkey-see, monkey-do' mindset.", but I never would have guessed that. Overall though, I enjoyed it, keep it up.