Create a visual representation of Otto Kenkis Titanstone, the protagonist of the biopunk dystopian novel "Shadow's Embrace," at the age of 43. Otto is a battle-hardened Special Operations Veteran with a weathered yet strong appearance. He possesses a rugged charm and an unwavering determination in his piercing eyes. His face shows the marks of a life lived on the edge, with a few subtle scars that hint at past encounters and hardships. Otto's salt-and-pepper hair, cropped short, adds to his mature and distinguished presence. In terms of attire, Otto wears a combination of practical and tactical clothing suitable for his former military background. He might be dressed in a form-fitting, matte black tactical suit, reinforced with biotech enhancements that enhance his physical abilities. Reflect his combat expertise with discreet combat gear, like a utility belt, tactical gloves, and rugged boots. Consider incorporating futuristic elements like cybernetic augmentations that blend seamlessly with his body, symbolizing the merging of man and machine in the biopunk world. While Otto's appearance should convey strength and resilience, also capture a sense of vulnerability beneath his hardened exterior. Express the weight of his past experiences and the loss he has endured through subtle facial expressions or body language. A determined set of his jaw or a hint of sorrow in his eyes could help convey the emotional depth of his character. Strive for a balance between the futuristic biopunk aesthetic and the human qualities that define Otto. Blend elements of technology, dystopia, and the essence of a seasoned warrior with the character's age and emotional complexity.