On the whole, I found the film to be quite entertaining. Nevertheless, I will get down to the nitty gritty.
As some youtubers have mentioned, the acting seems a bit "cheesy". While it's not all that bad, I think that part of it may be due to the script. The dialogue doesn't flow enough. It seems un-natural. The conversations don't seem real. They seem very scripted. Dialogue is definitely the hardest thing to write. Keeping that in mind, don't be afraid to rewrite some scenes. Most scriptwriters will rewrite their entire scripts several times over. Pay extra attention to the dialogue. Hand your script over to some friends to proof read. You're in university, you must have a few friends that are taking a creative writing class. Pitch the script to them, see what they say. And of course, now that you're a member of this forum, you could always pitch some scenes to the fine folks over here!
Also, I've mentioned this to another person on this forum, but the lines should make sense in the context of the film. Often times, you'll write a script with a location or a certain prop in mind, but when it finally comes to shooting, you don't have access to it. Accomodate for that change. A specific example of this is the parking garage scene.
"You almost killed me back there!"
"Well, you're walking in the middle of the road like some kind of brainless -" she is interrupted.
(sorry, not sure how to do script format on this forum). This dialogue had me really scratching my head. "Back there" is only 3 seconds ago, and 2 feet away. "In the middle of the road", when there is no road. It is a parking garage. This example is definitely arguable, but to me, it made no sense. It broke the flow of the scene.
So, make sure the dialogue makes sense in the context of the film, and make sure that it flows like a real conversation. You want to convince the viewer that it IS, in fact, a real conversation.
I'm not a very good cinematographer, so I'll leave that point to someone who knows what they're talking about!
The special effects were a hit and miss. I REALLY REALLY liked the edible gore. It added a lot of tension to the film, and made the zombies a lot more threatening. However, I didn't quite understand why the army guy was firing flares at your actors. It looked really weird, cheap, and out of place. You already have a good muzzle flash (as can be seen only 10 seconds earlier), so why don't you use it again? Unless of course it's a shotgun (Which I think it might be). In which case, why does a shotgun have a flare attachment? And why is he using flares as a weapon? Not only does this make really little sense, but it looks VERY weird. Of course, there may be a real reason for it, but as a casual viewer, I am not seeing it.
I'd post more, but I'm starving right now. I really hope you found some of my comments useful. Can't wait to see your next film!