Whether to paint a portrait from life or from a photo is a question that artists have debated since photos were available. Both approaches have their own advantages and disadvantages.

Working from life allows the artist to capture the subject's personality and expressions in a more direct way. It also allows the artist to make adjustments to the portrait as they go. However, working from life can be challenging, especially if the subject is moving or if the artist is working under difficult conditions.

Working from a photo allows the artist to have more control over the composition and lighting of the portrait. It also allows the artist to take their time and work on the portrait at their own pace. However, working from a photo can be limiting, as the artist is bound by the constraints of the photo.

Ultimately, the best approach for a particular portrait will depend on a number of factors, including the subject, the artist's style, and the desired outcome.