This is Isis, the ancient Egyptian goddess of fertility, also known as the goddess of motherhood, magic, death, healing, and rebirth.
Used on this painting are gold accents as well as precious oil colors made from real ruby and lapis lazuli.
The iconic Lapis Lazuli Blue is considered the color of kings - so it is not surprising that lapis lazuli was used to decorate objects in ancient Egypt, for example in the more than 3000 year old golden death mask of Tutankhamum.
Isis, goddess. Oil on canvas.