The weapon looks like it would be an interesting part of anyone's arsenal, but the lack of consistency in the drawing hurts this one. The shading is too rough and takes away from the image by making the eye wander too much. The weapon itself looks unbalanced as it is drawn here and would be hard to handle. Practice, practice, practice, would be my advice. Reference your work, and keep trying. I look forward to seeing your improvements. Thanks for sharing.