I like how the face is covered and it makes me wonder what she is. Is she representing Death (or war) itself, the unknown and faceless? Or is she the warrior who believes in the concepts of 'patriotism, war, 'the greater good', 'protecting one's country', but is unable to look those she kills in the eye? She has to cover her face so she doesn't see that they might not be so different from her. Or she knows they're not, but feels its her duty to kill anyway.
I think she might be the former. I think humans are inherently a war-like species. We thrive on conflict. Hell, even stupid crap like comments on Youtube or this very DA page show that people LIKE to fight and argue, they like to have something to hate and fight against. But I suppose it's a trait that could be 'cured' or 'watered down' in the very least... some people are of course, more violent then others and some are more passive. I wonder if a generation of human could actually be bred to be more docile by only 'breeding' the non-violent? Oh the story ideas... LOL
Sorry for rambling on so much. But fantastic picture... it made me think and I'm sure that was the point!