Ooo I like it. The only bad thing I can say is there is no border. I think sigs look better with borders. It also looks a little dull... Like as if it's been out in the sun and it faded. But apart from that, it's cool as.
I like the font, but I can't really see the master chiefs in it. Also, the bevel border seems to slant down at an odd time, maybe make it so the slant ends at the end of the pic? otherwise, AWESOME!
Bleeding cowboys is your favorite? Personally I prefer Evanescent or el& font gohtic (correct spelling) but thats just me. But ya its a sweet sig. Only thing I don't like is the bevel going around the middle.