@Zork: Well, it's not really my style, per say, but it looks quite nice for your first sig.
(Don't ask me to show you my first sig, looked pretty horrible.)
Anyway, the main thing throwing me off is the ship. The render is quite discolored: look into getting a better one, and color it ever so slightly with a colored lighting that matches the sig lighting.
I'm still pretty new to this myself too, though;).
THEY TOLD ME I COULD BE ANYTHING SO I BECAME A SIGNATURE PLS HLP