A haloed male figure holds a red book, against a gold background with visible text
A vertical, arched panel painting depicts a male figure from the chest up, set against a gold background. The figure has light skin, short brown hair, and a faint halo of gold dots and lines around his head. He looks slightly to his right with a neutral expression. He wears a purple tunic with an ornate brown and gold collar, and a teal-green cloak draped over his left shoulder and arm. His right hand is raised, palm facing forward, with the index finger extended. His left hand holds a rectangular red book with visible stitching or markings on its cover. The book is held against his lower chest, partially covered by the teal cloak. The gold background is textured and shows signs of age, with some areas of paint loss. Black text is visible on the gold background: "SANTUS" to the left of his head and "THOMAS" to the right. The painting is framed by a dark, possibly black or very dark brown, arched border.