caption: The image shows four studies of a man sitting on a chair, each with a different facial expression. The man is wearing a long robe and has his hands clasped in front of him. His eyes are closed and his mouth is slightly open, as if he is deep in thought. His hair is long and wavy, and his posture is relaxed and contemplative. The background is a neutral color, allowing the figures to stand out and be the focus of the image.