Four ways of beginning a portrait by Ben Lustenhouwer
У вашего броузера проблема в совместимости с HTML5
http://www.paintingportraittips.com
Four different ways to get a portrait on the canvas.
1). The tracing method 1:15
2). Using a projector 5:36
3). The grid drawing 7:08
4). Drawing from observation 10:16