Vertical 3:4 Chinese sci-fi western movie poster, low-angle slightly upward medium-long shot. A weathered robot cowboy in profile, looking back toward the left. The CRT frosted glass visor displays a warm-gold pixelated smiley face. Wearing a lowered brown vintage cowboy hat, a deeply worn dark brown leather jacket, a faded red bandana, and a silver revolver holster. Beside him stands a mechanical horse crafted from spliced brass and gray iron, featuring exposed hydraulic linkages, a rust-colored wire mane and tail, and amber glass lamp eyes, standing quietly with its head bowed. The background is a twilight Gobi desert, with silhouettes of wind-eroded Yadan rock terraces, a low-hanging setting sun, and misty distant mountains. Tilted old utility poles and rusted windmill skeletons are scattered around. Foreground elements include dried tumbleweeds and mechanical parts. Tyndall volumetric light rays from the setting sun pierce diagonally through the sand and dust, landing right at the horse's hooves. Warm-gold side-backlighting outlines a golden rim light, while cool-cyan ambient light from the back right pushes the metal shadows into darkness. At the bottom, two staggered, overlapping lines of distressed metal-etched thick serif text form the main title "IRON / HORIZON". Directly below, the subtitle "WHERE THE LAST MACHINE RIDES THE DYING SUN". All text is rendered in extremely thin sans-serif, all-caps, wide-tracking, pale gold-gray. Overall hyper-realistic CG rendering with a vintage western film texture. Distressed oxidized brass, rusted gray iron, and worn old leather. The red bandana and amber horse eyes serve as the sole high-saturation accents. Film grain, subtle vignetting, floating golden light dust, and sharp foreground with blurred background depth.