caption: The image shows a painting of a woman in a blue dress holding a fan, which is an art nouveau fan by Alphonse Mucha. The fan is decorated with intricate details and vibrant colors, and the woman is wearing a long, flowing dress with a high neckline and long sleeves. Her hair is pulled back in a bun and she has a serene expression on her face. The background of the painting is a deep blue, with a few stars twinkling in the night sky.