+Positives:
Quite a nice piece I have to say, the subtle golds of the outfit and bright blue of the hair looks nice against such a dark background.
Small flecks of white are a nice touch whether they are meant to be stars or the more likely thing being ash.
The light used in this is very well done, giving the figure an almost haunting look, shadowing his blank eyes. The posture is placed and posed well, only a few things maybe out of place or the slightest bit awkward but that possibly leaves it with a more soft, distorted look that goes well with the setting. That point would go well with the bodies in which lie on the ground, the fuzzy painted faces and body parts were done well in which they could have that soft, lineless and dark painting style but still being easily distinguishable at the same time.
Also a quick praise for the design in the outfit and gun, they look quite stunning and you can see the time and love put into the guns design.

-Negatives:
I'm pleased to say there aren't many, but the few that there are are mostly what I assume as minor nit picking. One of the only negative thing I had noticed in the posture are the calves and feet, its not well shown if its meant to look the way they do but the shape threw me off.
The other thing that took my attention was the clouds and the moon. I will give credit to some of the lighting and placement done but it mostly just looks quite rushed and you cant make out where one starts and another ends. The moon looks like it has a big hole caved in on the front and a bit broken off that would have been easily fixed if what I think is a cloud covering that bit had been given the detail of the moons light hitting it.