(Ultra-realistic, 12K, masterpiece, retro-futuristic, dark fantasy, cinematic lighting, film grain, gothic tone, hyper-detailed environment, reversal film look) Cinematic scene: A desolate battlefield at twilight, cloaked in violet mist and ash. Broken gothic ruins rise across the cracked ground, where twisted metal and scorched banners scatter in the dust. From a crater of burning earth, a colossal robot spider tank emerges — forged from dark brass and obsidian steel, its eight serrated limbs clicking like guillotines. Its armored hull is adorned with glowing crimson sigils and etched retro circuits, exhaling steam from archaic vents. The tank’s cyclopean eye burns bright red beneath a spiked crown, scanning the ruins. Arcane coils hum along its thorax, and chains dangle from its frame like mechanical tendrils. Lighting: moody chiaroscuro — side-lit by fires, soft god rays pierce through smoky clouds. Camera: low-angle cinematic shot, 35mm retro lens with shallow depth, focused on the tank. Foreground: cracked flagstones, shattered helmets, torn war banners wrapped in metallic webs. Midground: drifting ash and smoke coils. Background: ruined spires fade into the storm haze. Color palette: tarnished gold, deep violet, ember red. Mood: grim, arcane, haunting — a cursed machine god rising from forgotten wars.