For the Valkyrie, I believe the original Norse mythos depictions look more akin to Harpies, winged women warriors who used spears and rode upon horse, boar, or bear into battle using their wings as ways to help bring the dead to Odin's side to battle beside him thus the depictions widely go from beautiful women who ride on winged horse and a beautifuly fierce harpy woman, with a spear in hand. Both are terrifying imagery.