It's not bad, better than me when I started! The font needs work, it doesn't really go with the rest of the sig.
Its ok for a first. My advise find a lesser forum and build up your talent from there then come here. The showroom here for a first timer is like jumping into a tank full of parana.
well the render just sticks out wierd and text is plain wrong. but dont take it badly, you have to start somewhere .) no when you post your second then you can get more constructive critics, cause people could then notice if you are improving or not.
yeah, if you can find some free tutorials on this site somewhere, I'd suggest starting there. you can learn about everything from blending your render (so it looks like it's a part of the background and not just slammed on top of it) to text effects (so your text looks more natural) to all sorts of lighting tricks. its a good start, better than my first attempt. keep reading, keep learning and most importantly, keep creating and getting feedback. good luck!