Richard Deacon is an artist and sculptor who has created artworks using unusual materials such as steel, wood, plastic, leather and cloth.
He has used very thin ash (which is a type of wood) for his more recent works. He steamed the ash to a very high temperature so it would form coils, which look a bit like roller coasters or giant waves.
Look at his sculpture Restless in the picture above. What words would you use to describe it?