I know that you are not going back to this but would be great if you experiment more with the lights. Look for the "3 spot Illumination" in google, is a trick used by photografers.
In 3D all the work is 50% Modeling and 50% lights. If you can master the light all will look epic, trust me :)
I'll pull this up and give you a better render, hope I can pull it off :P.
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