Create a stunning, high-resolution 3D rendered wallpaper featuring the Linux mascot, Tux the penguin, standing proudly in front of a sleek, futuristic cityscape. The background should include towering skyscrapers with glowing neon lights, a starry night sky, and a subtle circuit board pattern integrated into the design. The scene should be highly detailed, with reflections and realistic lighting effects. The color palette should consist of shades of blue, black, and white, with a touch of green to represent the open-source nature of Linux. Tux should be detailed and charismatic, with a confident expression and a modern, tech-savvy appearance, rendered with realistic textures and shadows. --ar 16:9