You know what I thought about your last sig but I really like your current one. The only thing I can think to add is maybe some texture to the bottom and top black lines but that may look a little cluttered.
It looks awsome, i like the backround, awsome choice of colours and the picture is the best one to suit the colour of the skin. The backround, looks like you used the "Glass" from the Filters? It's good. The only thing you need to change is the font of the text. But everything else, awsome. I am going to rate it, at least eight out of ten.