Illustrate a mysterious and sophisticated cambion character, with red skin and large, gracefully twisting horns that suggest a deep connection to magic. He is dressed in a combination of ancient, ornate robes and modern elements, in colors of red, black, and gold, with intricate patterns that seem to tell a story. His eyes are a deep, hypnotic blue, conveying both wisdom and a hidden danger, and his long, black hair flows freely, adding to his ethereal presence. His expression is calm and serene, with a subtle, enigmatic smile that suggests he knows more than he reveals. The background is a surreal landscape filled with mystical symbols and floating islands, giving a sense of otherworldly power and ancient knowledge. The atmosphere is both tranquil and eerie, with an air of enigma and power. Use a painterly style with rich textures and fluid lines, capturing the blend of fantasy and reality that is typical of Katsuya Terada's work.