A little bit. Seriously just go follow some tutorials and then come back and ask everyone on your 10th signature. By then everyone will be able to judge how much work you need. Asking a ton of questions now won't really help because you need to improve everything...If you want my advice on this one, you should probably add some render effects and work on the weird lighting you have (plus get rid of the Carmelo render on the right). Also be sure to not make your sigs so big...