Przykładowa odpowiedź:

In the photo there is a group of children with different skin colours. In the background there is a map of the world. The children look very happy and cheerful. They are probably friends.

They match an idea of typical British children. Modern Great Britain is a very diverse country, both ethnically and culturally. You can see the people of all the skin colours in the streets of biggest British cities, like London and Brimingham.