Needs work.. alota work.. its too plain and dark from the left if you ask me.. and the Scorpian text needs work.. its very dark.. plus, the render is kinda over sharpened if you ask me.. I don't really like the border that much either.. and you overdid with the ligh spot at the bottom right corner..
Improve the text and make the background a lil bit brighter and improve the lightning spot.. then this much sharpening would look awsome on the sig..