This artist delivers an extremely thorough ‘how to’ video here where you can expect to using a variety of mediums to learn how to draw a mouth, lips and teeth direct from a reference photo.
The video is in four parts, the first part being the establishing and drawing of the basic shapes to form the lips. In the second part the artist adds the first base colors of tone to the lips and teeth and dissolves common misconceptions that teeth are separated by dark tones when in actual fact there are usually only light and medium tones. Part three is the prep work for his oil paint application and also finishing finer detailed work with the coloring pencils.
Park four shows the introduction of a Winsor & Newton medium Liquin to blend the oil paint and the waxy texture of the colored pencil to soften the impression and appearance of the lips. This is a great video for beginners and intermediates alike.