edufish, gtfo. If it matters to the OP as well:
okay, what I see in that picture is horrible. The lineart, just the lines, is good. You gave the lines clarity, and the figure was distinctly drawn.
The foundation, such as the wings, the human, the hands, etc. sucked. Badly. Firstly, the figure himself: His head is all sorts of wrong, with the perspective of the face and the hair being in complete right angles of one another. The clothes drape over him in random and unlogical ways, completely defying gravity in exchange for what looks cool. His hands are your typical anime fanart variety, with no knucles, no palm, just 4 fingers and a thumb attached to his wrist.
His body seems heavily improvised, and also like you had no idea what you were doing. Why not use a REFERENCE if you dont know the anatomy of a person? His feet looked cartoonish, and completely disregarded the mood you were giving.
The shading is incorrect, with some parts of his body casting multiple shadows despite the rest of his body indicating only one light source. The bullets, again, gave me the impression that you had no idea what you were doing. Why not USE A REFERENCE so that you can make sure the bullets look authentic?
And finally, the wings were particularly poorly done. Again, it seems you assumed that you knew how wings were drawn and went to work, without any particular interest in making them look attached to his body, or even in a correct position for his pose. (notice how your back muscles tighten when you bend)
All-in-all, you could have easily bypassed all of these problems by simply using a reference when you didnt know what you were doing, which it seems was the case for the whole damned thing. Including the so-called "bug eyes".