I hate those days when I wake up feeling like that. When I've bitten my tongue and it swells up and then gets bitten up even worse 'cos it presents a larger target for my teeth... um, I don't know, maybe you were trying to portray something deeper than that. Still, you've captured that feeling beautifully.
Interesting piece, when I saw the thumbnail, got my attention... I just went through your gallery and seems 2 things from here are your sing: black (ink, right?) and skulls... great ideas put together (and usual stuff when someone makes something similar, but its good), the pinch of colors make it more tasteful and adds something "strange" to the deviation that compliments it, making it more visually attractive.
I know stylization is a great stuff when it comes to drawing, specially skulls... just a little advice, why not studying a bit more about animal skeleton anatomy?, is not that your stuff looks bad, but when you add anatomy corrections, the thing is way creepier and better at the same time. Am not trying to say hey-grab-a-book-and-learn, is difficult, but as you've seen in a few of my drawings I tend to go more with anatomy (and you can blame it to my career :/). But you see, is something that makes your stuff stands out ... mere personal oppinion xD