Croquis
Croquis drawing is quick and sketchy drawing, usually of a live nude model. Croquis drawings are usually made in a few minutes, after which the model changes pose or leaves and another croquis is drawn. The word croquis comes from French and means simply "sketch". In clothing design, a croquis is an outline silhouette, for use by a designer.
After the initial sketch, a croquis drawing can be used as a foundation for another work of art such as a painting, or it may be used as a work of art itself.