It seems a little hard to follow, meaning that there aren’t enough details shadowing things. I would like to see some of the plot come out to, since that is probably why I ma confused at what's going is because I don't know what should be going on. Constant action hurts a story, if a hint of the plot is not thrown in, then it just seems like a journal of actions that the monster are doing.
Just a good tune up and you will be right on track.