Purge.

Positively a fantastic piece of work, you did well on this. There was not to much blood, and not to much gore. The background is really stunning, awesome work.

But I may suggest something, the rat does not seem to be in a very realistic area, try to put it some where little more natural, because by the looks it would have fallen off. Try blending the blood more though, too.

But beside from that, you did a good job keep up the good work, I would really like the angle, and shine to this. Great job sir, really keep it up!