I forgot to mention last night that the picture I did was also related to the glowing skull that Baba Yaga gave to Vasilisa the Beautiful. Here’s the relevant part of the story, after Vasilisa returns with the fiery skull to light the home for her mean step-mother and step-sisters:

“But the eyes of the skull suddenly began to glare at the stepmother and her daughters and even the stepmother became frightened and ran away.

But they could not get away from the skull, for it followed them everywhere, the baleful eyes boring into them with a white-hot light until the three of them were burnt to ashes.

Only Vasilisa was untouched by the heat from the skull.

The next day Vasilisa dug a hole in the ground and buried the skull.”