Act as a visionary sci-fi concept artist with 10+ years of experience in post-apocalyptic themes. Create a hyper-detailed DALL-E image of a [massive titanium-plated robot spider] crawling through the [crumbling ruins of a futuristic metropolis] at dusk. The spider should have [glowing red photoreceptor eyes], hydraulic limbs with exposed cabling, and a battle-scarred chassis. The cityscape should feature collapsed skyscrapers with neon signage flickering amidst the debris, smoke rising from distant fires, and eerie blue emergency lights reflecting off wet pavement. Use a cinematic composition with dramatic low-angle perspective to emphasize the spider's scale against human wreckage like abandoned vehicles and shattered glass. Render in Unreal Engine 5 style with photorealistic textures, volumetric lighting, and atmospheric haze.