The image is a detailed anatomical illustration of a person's back and shoulder muscles. The person is depicted from a three-quarter back view, with their head turned slightly to the left. The skin is partially removed to reveal the underlying musculature and skeletal structure. The rib cage is prominently displayed, with each rib clearly delineated. The muscles of the back and shoulder are rendered in shades of red and beige, with intricate details showing the muscle fibers and their attachments. Small numbers are scattered throughout the illustration, likely serving as labels for specific anatomical features. The person has dark hair pulled back from their face, and their ear is visible. The overall style of the illustration is reminiscent of historical anatomical drawings, with a focus on accuracy and detail. The background is a muted, dark green, which helps to emphasize the anatomical features. The image appears to be a painting or a high-quality print.