In the following sentence, I am not sure whether to use the word 'countenance' meaning 'look', 'the expression of the eye'. Does it sound good? If I used 'look' would it be clear enough? I am talking about pictures, paintings here. I want to convey the message that the eyes of the person depicted are the central axis.
The portrait emotional reading is about the countenance, the picture central axis that reveals its intention and its position in the world.