I think the death descriptions could use richer language.I mean "surprised" alone has been used so much it only registers just as a generic z0mg! -look. Use something that defines the expressions more, e.g. perplexed, bewildered, dumbfounded, dismayed, startled etc.
Also, a few notes...
Your death is quick, but painful. By the time you realize that your life is about to end, the darkness is already washing away the pain.
Avoid repetition ("pain"). There are good online therasaurases if you can't remember any synonyms.
The <profession> spits out blood, sneers at you and falls down dead.
I like it, but It feels a bit too much like a list, it requires some more fluency. Might I suggest "Spitting blood, the profession sneers at you and falls down dead."
The <profession> clutches the wound, but blood continues to flow through the fingers and he goes down with a surprised look on his face.
As said before, perhaps you could replace "surprised" with something more unique. I also thing "goes down" could be changed to something like "crumples down".
The last wound is fatal and the <profession> dies instantly, before the body hits the ground.
Looks fine, although I find the sentence structuring slightly odd.
What is the emphasis on? The fact that the <profession> died instantly or that he didn't have to hit the ground before dying? Both basically mean the same thing. The latter part doesn't really feel like it is necessary. Either take out "instantly" and the comma (also change "the" to his/her), take out the latter part or place some more emphasis on it. I would probably write it "The last wound is fatal and the <profession> dies instantaneously, his body not having enough time to even hit the ground."
The <profession> gasps in pain, tries to say something, but chokes on blood filling his throat and and collapses.
Pretty cool.
All in all they're all pretty good, but could use some tweaking. And that's just my humble opinion, I could be giving you shit advice.