A person stretching as they get out of bed in the morning.
Technically, this style of sculpting is extremely difficult to do because the springstone is very hard, and great skill is needed to avoid breakages when removing the inner stone with a punch. Peter's sculptures are each created from a single solid raw stone - he rejects any piece that cracks during sculpting.
This is a real 360° sculpture and the limited number of photographs make it hard to do it justice. More photos are available on request.