Suggestions on My Sig?

Here's a sig that I made after seeing a cool brush from a tutorial.

Please give me feedback so I can improve my photoshop skills!

I don't like it.
The render sticks out to much and there are no effects.

It's just a background with text and a render.
Nothing extra-ordinary, look at different tutorials, there is a link to a whole lot of sites that have tutorials and such in the discussion section for graphics.
I suggest you take a look at it, you will get better.