That is a magnificent sketchcard version of Amaterasu by Melike Acar. It is part of the upcoming Classic Mythology set by Perna Studios and it uncovers the deep source material of a modern pop culture hero. Video gamers know Amaterasu in a quite different form.
Capcom created something called Okami in 2006 and it may be the most beautiful video game ever made. The main character is a she-wolf who incarnated the spirit of Amatersu, who is a Sun Goddess from the Shinto mythology of Japan. The Okami character was so popular that she was also included in the Marvel vs. Capcom 3 series.
And now, with a delicious wink at John Talbain from Darkstalkers, Amaterasu is getting a new hilariously hairy alternate costume.
Mad coolness incarnate!