And to add to what T R 1 B A L has said, you will also want to avoid using the Bevel and Emboss tool (not really a tool, but, meh..). Even with text, in 99% of the cases it is used in, it completely ruins the piece.
My suggestion to you for now would be to stick with following tutorials (most likely beginner tutorials). You can find some pretty nice ones on www.deviantart.com .
did you put a chrome effect on it? if so i hate it. it ruins the picture. also it looks like you did a whit 100 px soft brush dot on the side of render, put a chrome effect(maybe), and added a lens flare