8/10 was generous, but this was very good for your second animation! You need some work with tweening and stuff but you seem to have a natural talent for this. In particular the scene when the zombie's hand was reaching inside the door it bothered me because it didn't look very "natural" I guess. The music was very cool and I thought the redead was drawn very well. It captured the creepiness and scariness it had in ocarina of time. It also looked very "dark" and awesome. The way the humans were drawn kinda creeped me out, lol, but thats pretty much how they look in the zelda games. Some humans were pretty odd-looking.
This flash makes me want to see a zombie movie with all the zombies replaced with redeads, lol. Also I'm pretty sure that since redeads are minions they do not follow the normal rules of zombies. On the other hand, creative license allows you to do whatever you want.
In any case, keep doin' your stuff, cuz its good!