Prompt: This beautifully designed Portuguese Christmas Facebook post captivates with its photorealistic imagery. The image quality is impeccable, showcasing intricate detail and vibrant colors. The main theme of the design is a charming scene depicting half a square of the city of Lisbon, decorated with twinkling lights and a festive tree. The attention to detail is amazing, with the exquisitely decorated Christmas tree rendered with precision. This exquisite piece of digital art combines nostalgia and holiday cheer, evoking warm feelings of joy and anticipation.