This is from a series of 36 Tiki Portraits, all created using Corel's Painter X. Pencil sketches were scanned and used Painter's scratch board tool for line work and pastel brush with grainy hard textures to lay in color.

The complete set of 36 Tiki Portraits can be viewed here:
http://www.chetart.etsy.com/shop

Each portrait has its own brief description of attributes to evoke a form of history for the entire set. This piece is titled "Pan Tiki" and the accompanying text for it:

Guards the beaches and acts as a trickster siren, the Pan Tiki lures unwanted ships into the shallows of Desperation Atoll. This siren song also discourages the presence of sharks for miles, making it a haven for surfers.