Hi!
I'm new at this, so I hope I don't embarrass 
myself or anything.  Ok, here I go...
Here's an awesome cel of Kamatari from RK.  
Eventhough is not a matching background, the 
image appears quiet nice. *The bkg kinda looks 
like the Neptune cel, only that is horizontal.   

Many thanks to Usagi's house & 
their staff for this wonderful item.