caption: The image shows a mosaic of a man with a long beard, believed to be St. Nicholas, holding a cross in his hand. The mosaic is composed of a variety of colors, including blues, greens, yellows, and reds, and is set against a white background. 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 focused intently on something in the distance.