Create a cinematic 3:4 vertical poster of New York City that feels truly epic and unconventional, showing the passage from the 20th century to the 21st century in one seamless image. Place a lone figure at the center of the composition, standing in the middle of the street and looking forward as if witnessing New York across time. The person should be seen from behind or in subtle half-profile, wearing a timeless coat, acting as a visual bridge between two centuries. The left side should depict 20th-century New York with strong historical identity: classic Manhattan streets, warm sepia-golden atmosphere, steam rising from street vents, vintage yellow taxis, old newsstands, retro street lamps, period storefronts, and iconic landmarks such as the Chrysler Building and the Empire State Building. The right side should depict 21st-century New York with a cooler, sharper, more futuristic mood: reflective glass skyscrapers, One World Trade Center, modern Times Square digital billboards, sleek traffic, contemporary street lighting, vivid neon reflections, and a dense modern urban energy. Do not make the transition look like a hard split-screen. Instead, make the change between the two centuries feel natural, smooth, and cinematic, as if time is dissolving and evolving through the center of the city. The skyline and street perspective should remain coherent, with believable architectural continuity and a visually stunning time-shift effect. Use a wide-angle street-level view with strong depth, towering buildings, dramatic clouds, wet reflective pavement, rich atmosphere, realistic textures, and highly recognizable New York landmarks. The overall result should be visually striking, emotionally powerful, ultra-detailed, photorealistic, cinematic, grand in scale, and poster-worthy, with no visual flaws and no text.