Cool man has a nice feel. fits the theme, a guy coming out of the fog to kill you. I like the text on the wall nice fit.
Very nice sig, as stated before, the text on the wall is awesome, however, the other text is iffy. I like the fog effect you have, overall, it's an excellent sig.
I like the idea, but I think you might have over done the fog on the left side. Not to much but you should add some dips in the fog like the right side to make it fit more. I like where you have your name place, but I think you should try to get the walls texture to show on the font. Maybe a blueish gray color in the BG and have it fade out. This might just be me as well but in fog I don't believe it would be that bright on the sides??? Try some darkening. Not saying anything I just said is going to make it better but it's some ideas you might wanna try.