Create a realistic, highly detailed, full-body image of a towering muscular figure with a demonic, Oni-like aesthetic. The character has a horned helmet with glowing red accents, suggesting an internal power. The attire consists of a rugged tank top and cargo pants, combined with futuristic armored elements, including a mechanical gauntlet on the right arm. The character exudes a menacing presence. The backdrop is a futuristic urban environment, with neon-lit skyscrapers, conveying a night time atmosphere. The image should be 9:16 scale, highlighting the character's imposing stature amidst the urban landscape.