Shapely describes a body — or part of a body — whose outline looks attractive: a shapely figure, shapely legs. It does not mean “having a shape,” which everything has. It means the shape is pleasing to look at. Writers use it of people, and sometimes of a well-formed object, a vase or a hill, though the body use is the usual one. It is a slightly older, complimentary word; you meet it more in ads and books than in young people’s chat. Though actually, for a long time it was used mainly of women’s bodies, and that can feel dated or too much about looks. You can still say it of anyone’s form, but many people now pick other words, or say nothing about the body at all.