Dan Beckemeyer, hailing from O’Fallon, Illinois, is the graphic designer responsible for the images above. They are from his series titled Systems. He used hand-made abaca paper to create these highly detailed images of human anatomy. He first drew the skeletal system, then stitched blood vessels before finally adding felt for the muscle mass.
I really like how the piece has an unfinished, natural look. It also enables you to see the different layers of depth.