A Country House in a River Landscape, Previously Identified as Oatlands Unknown painters

The picture has something of this: tree, landscape, home, city, beach, architecture, building, house, daylight, sky, people, sunset, water, outdoors, seashore, street, storm, light.
Perhaps it’s a painting of a landscape with people and a dog in the foreground and a building in the background with a red flag on a cloudy day.