Create a background (Drawing or Photoshop made) themed for mafia MMO.

I need a background picture for a newly developed mafia MMO. The source files aren't uploaded, therefor you can't see the website yet. However i am looking for a background, that will be shown between the panels and the content are of the website. Description of the image: Size: 1000x800px. Theme: Can be any well drawing theme (Photoshop effects) Colours: Dark, grey and perhabs a few colours on some of the items. Objects in the image: Can be a cool dark themed background that has a few dark trees and some weapons in it. Besides that you are pretty much free to use your own style and ideas :-) Show me some of your older work that might relate to this project.