Create a realistic, highly detailed 4K or 8K image of a cyborg character with a techwear aesthetic, inspired by the styles of John Brack and Bruce Pennington. The character should have a CGI appearance and be set against the backdrop of castle walls. The image should mimic the look and feel of Japanese animation and have a focus on realistic human movement and pose, focusing on centered composition with the cyborg's face and upper body prominent. Ensure the cyborg's arms are long and gangly, with a mix of mechanical and organic elements integrated into the design. The image should be rendered in a style reminiscent of Unreal Engine 4, with high attention to detail and realistic lighting. Provide the final image in a high- resolution format