Samurai in a Neon Subway Tunnel

Epic comic book style illustration of a lone samurai in a neon-lit subway tunnel. The samurai wears traditional armor with urban upgrades, draws a bright katana, and stands in a dynamic pose. The tunnel is damp, graffiti-covered concrete, rain-slick rails, and overhead neon tubes casting blue-green and orange highlights. Use bold black ink outlines, heavy halftone shading, and dynamic motion lines. Perspective from a low angle behind the samurai, tunnel receding into darkness. Color palette: electric blues, teals, and warm amber highlights. Cinematic, panel-ready composition with high contrast and dramatic shadows.