Mecha Girl Poster with Backlit Rail Cannon

[中文]
A teenage mecha girl, her pale skin marked with soot and sea spray, sharp amber eyes reflecting glowing HUD targeting reticles. Her waist-length ash-white hair is tied in a high ponytail, whipping wildly in the ocean wind. Matte gunmetal exoskeleton armor covers her shoulders, forearms, and shins, with exposed hydraulic pistons at the joints and glowing cyan coolant lines across her chest rig. An oversized oil-stained hangar jacket slips halfway off one shoulder; a massive rail cannon rests on her right shoulder, with dog tags and a worn red ribbon hanging at her collar.
She stands slightly left of center on the rusted edge of a tilted steel platform extending over the black sea. Her weight rests on one leg, her left hand grips the cannon strap, and her head turns slightly toward the camera with a calm, defiant stare. Steam vents continuously from the thrusters on her back, while her ponytail and jacket stream violently to one side in the salty wind.
The background is a vast abandoned offshore city at dusk. Colossal megastructures of unknown purpose rise from the ocean in staggered silhouettes; bone-white towers merge with barnacle-encrusted steel, and enormous ring-shaped structures lean at broken angles. Rusted truss skeletons are tangled with dead cables, dark waves churn between the support pillars, and several shipwrecks sit half-submerged at their bases. Heavy sea fog coils around the lower buildings, while the towering structures pierce into the dark sky. Faint scattered lights flicker high in the towers like distant eyes.
The image uses moody, low-key lighting: a cold teal-blue ambience filters through the overcast sky, while a warm amber sodium glow leaks from a distant structure on the right. A low sun behind the towers creates a strong backlight, carving out her silhouette. Volumetric light cuts through the sea fog, and wet mirror-like highlights glint across her armor.
Shot with a 35mm anamorphic widescreen lens from a slightly low angle, looking past her shoulder toward the distant structures. Medium-wide composition, shallow depth of field blurring the rusted foreground, with horizontal lens flare and fine atmospheric haze compressing the far-off megastructures into layered silhouettes.
Overall style: cinematic anime key visual, painterly digital illustration with crisp line art, a desaturated oceanic palette of teal, bone-white, and rust, accented by a few warm highlights. Add film grain for a high-contrast art poster finish. Aspect ratio 16:9.

[English]
A teenage mecha girl, her pale skin marked with soot and sea spray, sharp amber eyes reflecting glowing HUD targeting reticles. Her waist-length ash-white hair is tied in a high ponytail, whipping wildly in the ocean wind. Matte gunmetal exoskeleton armor covers her shoulders, forearms, and shins, with exposed hydraulic pistons at the joints and glowing cyan coolant lines across her chest rig. An oversized oil-stained hangar jacket slips halfway off one shoulder; a massive rail cannon rests on her right shoulder, with dog tags and a worn red ribbon hanging at her collar. She stands slightly left of center on the rusted edge of a tilted steel platform extending over the black sea. Her weight rests on one leg, her left hand grips the cannon strap, and her head turns slightly toward the camera with a calm, defiant stare. Steam vents continuously from the thrusters on her back, while her ponytail and jacket stream violently to one side in the salty wind. Behind her lies a vast abandoned offshore city at dusk: colossal megastructures of unknown purpose rising from the ocean in staggered silhouettes, bone-white towers fused with barnacle-encrusted steel, enormous ring-shaped structures leaning at broken angles, rusted truss skeletons tangled with dead cables, dark waves churning between support pillars, and several shipwrecks half-submerged at their bases. Heavy sea fog clings to the lower buildings as the towering structures pierce into the bruised sky, with faint scattered lights blinking high in the towers like distant eyes. Moody low-key lighting, cold teal-blue ambience from the overcast sky, warm amber sodium glow leaking from a distant structure on the right, a strong backlight from the low sun behind the towers carving out her silhouette, volumetric rays cutting through sea mist, wet mirror-like highlights on the armor. 35mm anamorphic widescreen lens, slightly low angle looking past her shoulder toward the distant structures, medium-wide shot, shallow depth of field with rusted foreground elements in soft focus, horizontal lens flare, fine atmospheric haze compressing the far-off megastructures into layered silhouettes. Cinematic anime key visual, painterly digital illustration with crisp line art, desaturated oceanic palette of teal, bone-white, and rust with small warm accent lights, film grain, high-contrast art poster aesthetic. Aspect ratio 16:9.