Russell used several media including oil and watercolour. His 1898 work Preparation for the Buffalo Hunt shows his ability to handle complex group scenes. He often focused on the perspectives of Native Americans and the realities of ranch work. His style avoids the theatrical poses found in some Western art. He preferred naturalistic depictions of horses and figures. His watercolours like Indian Scout show a clear understanding of light and anatomy.

Collectors today value Russell for his historical accuracy and technical skill. His paintings are visual records of the American West before the closing of the frontier. The market for his work remains strong, with major pieces reaching seven-figure sums at auction. His art provides a sense of space and history for modern interiors. These prints allow homeowners to bring the atmosphere of the Montana plains into a contemporary setting.