I was inspired by an image in Prisse d'Avennes' Atlas of Egyptian Art, page 126.
"The plants growing on hillocks below are from paintings in a small storeroom in the first part of Ramesses III's tomb at the Valley of the Kings."
It wasn't easy to limn on the canvas, as I had to make three different tracing sheets from the line drawing.
Based on what I've seen, I believe the yellow bulbs are mandragora fruit. Here is an example I photographed at the Brooklyn Museum several years ago:
Tile Fragment with Mandragora Fruit and Leaves
Faience, 2 15/16 x 5 5/16 in. (7.5 x 13.5 cm)
Reportedly from Hermopolis Magna, Egypt
New Kingdom, late XVIII Dynasty, 1352-1336 B.C.E.
Brooklyn #52.148.2, Charles Edwin Wilbour Fund
The design evolved as I went. I decided it badly needed a border, even though that meant the bottom would need to be faced. Also, I realized...
... there would be simply too much of the pinky tan, so I figured out a way to have a shadowed area, using pattern variations that will read darker to lighter from a distance.