The arms look better, but the swaying hair doesn't make much sense. I get what you're trying to do, but it wouldn't sway just one way, but back and forth, like a pendulum. I think it would look much better without any swaying hair though.
Notes taken! I'm just starting out with animations and I appreciate any thoughts people might have on what I can do to improve myself =)
I don't really understand why both his arms bob up and down in sync with each other. If anything they should alternate.
Also, just personal preference, but I think this could do with a transparent background.
Otherwise, great concept (I'm a huge zombie fan).
Hm, you are right.