I am not to fond if it. Your background still looks like a bunch of gradient waves. Your picture does look well cut out, but that didn't really improve anything thing in this case. In every signature, your picture sits in either the left or right position of your sig. Add variety, blend your picture into your backgrounds... and try to make some better backgrounds. You don't need to learn from other people, you can play around and use your imagination to create new styles. That is how I learned what I have in Photoshop, and hopefully you will learn this to. Making a sig takes more effort, all I see you doing is placing gradients on a layer, a picture on the next layer, and some font. Like I said before, add variety to your work.. and maybe your sigs will start to look different, and not as boring.