Even the position of the feathers in the headdress and the flow of the fringe in the sash are IDENTICAL in the postcard photo and Churchill's "original by me, Ward Churchill, from my own Native American imagination" photocopy artwork.
Exactly... the feathers in the headdress was the first thing I focused on when trying determine if Churchill's drawing was copied. It's an obvious match.
It's stunningly in-your-face, isn't it?