In art, a sketch refers to a quick, informal drawing, that is typically done from life. A sketch can be very useful to artists of all mediums for a variety of reasons.

Great Drawing Girl Posture - while drawing a female, an artist can request the model woman to sit in a specific posture or get her into bed. Every artist would try showing the beauty of a female body from front side, as that would make the drawing more aesthetic and sensual. Though sensual would be the curves of a lady, her mood could be settled in modesty. While drawing such a portrait the pose should be artistic in all respect.

A sketch can be a great tool for any artist, Happy Sketching