The link is intriguing, O'Tink...elucidates some complex dimensions of the Third Reich.
I am glad to know of this illustrator, Stassen, because I looked closely at first thinking his Valkyries resemble the art of William Blake, who also took on mythic themes.
I eventually ruled out Blake, and the second illustration you posted is indeed quite different from Blake's style...this one inspired by Dante Divine Comedy.