I doubt that anyone needs to be introduced to Penny, having been the recipient of so many awards and titles for her efforts in the flat tin world: Grand Master Painter, and most recently being given the Best of Show at Kulmbach in August 2015.
Penny put on another tutorial at the SCAHMS workshop. It is not very long because I ran out of memory in my iPad. Nevertheless, here is about 15 minutes worth.
Penny already painted the piece in grayscale. These two videos show how she applies glazes of color.