looks good overall, but there are a few things you could improve on. the 2 white streaks through the middle seem kinda random and out of place. maybe change the color to red-ish, or change the opacity or blending mode. the white on the left might look better if it was more yellow-ish, so that it matches the left side of master chief. if you look, you can see that his left side is lit, while his right side is dark. try to keep that natural lighting in your background and the rest of your sig. also, master chief could be blended just a little bit more into the backgroud, and i think it would really help out your sir. other than those few things, this looks really good! the background looks nice, and the overall color scheme is really good too.
The white lines and the white object on the left, take the focus away from the focal, and the text is a bit iffy. Overall, it's a nice looking sig.
