i dont know if i misinterpited that image or not but the way that the light sources looked to me. ill post this anyway
![](http://i462.photobucket.com/albums/qq341/JMirabelli/lighting.png)
this is how i felt that the phere should have been lit, though i was thinking that the light sources might be in the distant background. I guess this might be usefull anyway to someone ( its not super accurate, jsut a quick thing i threw together in paint.)