Sickert painted an informal portrait of Winston Churchill c. 1927.

He took informal, often incisive portraits of the famous, the infamous and the unknown.

A majority of the pictures show the local people, some as informal portraits, some showing people engaged in various activities.

As informal portraits go, I thought it rather good.

He wants an informal portrait rather than an official one.

Two years later, she went around the world and spent most of her time in Southeast Asia making informal portraits of people in their surroundings.

The majority of the pictures are of various people encountered on the trip, as informal portraits or showing them engaged in some interesting activity.

The film offers a portrait of the hierarchical structure of a Catholic school, both formal and informal.

Ramsay pioneered the informal portrait in the fashionable world of London.

What makes his work unique is how he used available light, shot from unusual angles, and informal portraits.