Extreme close-up of an old iron structure, heavily rusted from acid rain, with flakes of rust falling off and sharp textures along the metal edges. Water droplets are caught in mid-air as they fall from the rusty surface, illuminated by natural light from a gloomy sky. Created Using: high-definition photography, detailed rust texture, cinematic lighting, rain effects, sharp focus on water droplets, gritty and natural textures, overcast atmosphere --ar 16:9  --s 750