First  thing to do was selecting the glass for this lamp shade:

The picture shows it standing infront of one of our show rooms windows,

The sun was shining this afternoon.
 
 

Here is the slection for the yellow leafes in the shade, the glass shown in the first picture (above)  wasn't the right one.
 

This color combination fits much better and is more like the leafes Wisteria has in nature: