Plaster is a finish undergoing a major revival. In the age of smart materials, the faux finishes take a fresh and exciting turn and plaster right there with them.
Once only associated with churches of the past and palaces of dead kings, plaster can be modern and contemporary. This is a great example of such an application.
While I don’t necessarily fancy a literal faux-finish approach, in this case, replicating the look of poured concrete is soft, natural and well-balanced with the light floor and furnishings in the room.