Treasure is a watercolour.  I love doing bodies, torsos, headless figures so that the person in the painting can 'belong' to the owner of the piece of art.  Treasure is just such a piece.  Whether the girl be the treasure herself, or the jewels around her neck or in her naval, or if it's what she is looking at that reflects it's valuable glow of light onto her body, the girl could be anyone in the world, in any situation, making the painting completely personal to the owner.