The purpose of a portrait can vary widely depending on the context and the intended audience. Portraits can be created as personal mementos, to document historical figures or events, to showcase the beauty of a person or their status in society, or to convey a particular message or emotion.

A successful portrait should capture the subject's essence, whether it be their physical appearance, their character, or their emotional state. The artist must make deliberate choices in terms of lighting, composition, pose, and expression to create a compelling and accurate portrayal of the subject.

In terms of style, portraits can range from realistic to abstract, with artists often incorporating elements of symbolism, metaphor, or allegory to convey deeper meaning. The medium used can also affect the overall feel of the portrait, with painting and drawing often providing a more tactile and textured experience, while photography can offer a more immediate and realistic representation.

Overall, portraits serve as a visual record of people and their lives, capturing both the individuality of the subject and the cultural and social context in which they exist.