I'm not finding others interpretation of human form Amaterasu from the game as a white-haired wolf lady believable. I always imagined she would look like other ladies in the game.
So here she is, how I would see her true form.
(Also you should totally get Okami HD on PS3 if you haven't already!)
Photoshop CS6 practice
Link
LuciDeVille
This looks fantastic. I love how it looks very traditional. I will have to check out Okami too.