A digital illustration of a teenage boy walking along a train platform, with a train arriving behind him. The boy is wearing his blue jacket over a beige shirt and beige pants, carrying a casual backpack over one shoulder. He is walking with a relaxed stride, looking slightly ahead with a calm expression. The train behind him is brightly colored and features a large vinyl advertisement wrapping its exterior, displaying a design identical to <https://s.mj.run/3IZIFOIwi0E> . The platform has concrete details, overhead signage, and soft daylight streaming across the scene. The illustration is vivid, clean, and detailed, matching previous character designs and styles, hd quality --cref <https://s.mj.run/L-zJFwCOj5w> --iw 1.2 --ar 16:9