Sketches can be made in any drawing medium. The term is most often applied to graphic work executed in a dry medium such as silverpoint, graphite, pencil, charcoal or pastel. It may also apply to drawings executed in pen and ink, digital input such as a digital pen, ballpoint pen, marker pen, water colour and oil paint. The latter two are generally referred to as `water colour sketches` and `oil sketches`. A sculptor might model three-dimensional sketches in clay, plasticine or wax.Sketching is generally a prescribed part of the studies of art students. This generally includes making sketches croquis from a live model whose pose changes every few minutes. A `sketch` usually implies a quick and loosely drawn work, while related terms such as study, modello and `preparatory drawing`

圖片編號： 173560250
拍攝者： Vandanajain1502