Create an enhanced version of a futuristic warrior character. The character has a sleek, cybernetic appearance with a metallic silver mask that covers the entire face, featuring angular lines, a distinct facial shape, and glowing eyes. Ensure the facial shape of the helmet is maintained. The character wears a long, dark trench coat with quilted sleeves that have a slight sheen, featuring hexagonal shapes along the shoulders and arms, which should be preserved. The coat has a high collar that adds to the imposing look and is open at the front, revealing a plain T-shirt underneath. The character's arms are cybernetic, with intricate designs and glowing elements that indicate advanced technology. The arms should have brown skin and include yellow dots with tech veins. In one hand, the character holds a large, futuristic sword with a broad blade and intricate details. The other hand is relaxed by the side. The overall color scheme includes metallic greys, dark browns, and subtle gold highlights. The background should be minimalistic to keep the focus on the character. Add subtle enhancements to the lighting and shading to give the character a more dynamic and imposing presence.