Somehow, I associate Lelouch with fire. Something about his personality and what he does just screams "fire". Maybe it is because he is flashy and dramatic as Zero. His activities also kindled the fire of revolution across his world and helped it burn brightly for a time.
The scan looked to me like he ought to be holding something so here he is. :)
I got the scan at Minitokyo and posted the wallpaper there too. There, it's 1600x1200. :)