caption: The image shows a mosaic of St. John the Baptist, a man with a beard, holding a book in his hands. The painting is composed of a variety of colors, including blues, greens, yellows, and reds, creating a vibrant and eye-catching piece of art. The man is wearing a white robe and has a halo of light around his head, giving him a regal and majestic look. His facial features are detailed and his eyes are looking off into the distance, giving the painting a sense of depth and reverence.