Create a highly realistic photo with a light, solid-colored background that emphasizes the natural atmosphere of the scene. The image should capture a family during their Christmas celebration, showing them in the act of opening gifts. The family, a mix of children, parents, and grandparents, should be dressed in holiday attire, gathered around a lavishly decorated Christmas tree in a living room setting. Their expressions of joy and surprise should be vivid and true-to-life as they open presents, enhancing the realism. The photo should be warmly lit, creating an intimate, cozy holiday ambiance, akin to a candid snapshot taken during the celebration.