caption: The image shows a painting of a man in a red robe standing on a rock, holding a stick in his hand. At the bottom of the image, there is some text which reads "Einar Treiberg, the Chief of the Sioux". The man is wearing a traditional Native American headdress and clothing, and his facial features are detailed and lifelike. He has a strong jawline and a determined expression on his face. His clothing is adorned with intricate patterns and symbols, and the background is a deep blue sky with white clouds.