Very nice. The blood DOES look weird tho. Too much white and not enough spray.

Better of course, but the guy still bother me and the blood looks quite strange IMO.
I love the clouds, the hammer, the fence, the small house in the back, the suit, the blood, AND I LOVE GAS MASKS !
In fact I like about everything in it (except the hair though)
Good luck :)

Ooh, thanks for taking the time to make that edit. You pointed out some things I wasnt aware of... so  Im going to try and work on this a bit more and see if I can fix it up a bit. Im also going to see what I can do about that style consistency thing... I don't know if it'd be better to work on the gal or her victim yet for that though...
But anyways, I appreciate the critique!

Nice. I like the girl, but I don't think the composition does her justice at the moment. I would remove the fence behind her so that the area around her is less cluttered. You could also move her towards the center, use the blood to circle her more or use the fence and some lines of trees to point towards her to make her even more obvious. I also think her torso is too short and her thighs look uneven in size. The highlight on her breast next to the shadow seems a bit random and makes it look flat. The comical pose of the victim contrasts with the realistic style you're using for the rest, and I think a consistent style might be a better idea.

Here's an edit where I've changed most of the things mentioned above, which might be a bit overkill as far as the composition goes, but hopefully it'll show what I mean. In any case, good luck!