"Diesel / Steampunk, machinery with gears and pipes, metallic or rusted" won the poll "What Kind of Images Do You want To See More of?", so I returned to this theme ^_^
I think it's nice as wallpaper, but it has a bit of "that creepy feeling".
Blender / Cycles / GIMP as usual.
Updated in 30/09/2012.
Comments are welcome, thanks for view and have fun!