Underground Doctor: Neon Tunnel Guardian

A heroic doctor in a white lab coat with a neon-accented stethoscope and utility belt stands in a damp underground tunnel. Exposed pipes, riveted metal walls, and flickering neon signage cast teal and orange glow. The scene is drawn in bold comic-book style with thick ink lines, high-contrast lighting, and halftone shading. Dynamic low-angle perspective as the doctor advances with a glowing medical device in one hand and a medical kit slung over the shoulder. The mood is gritty neon noir, tech-noir aesthetics, rain-damp air, dust particles.