an underground very dark gloomy multi-layered structure of rusty thick iron grids, dense chain-link fencing and peeling walls with multiple floors. inside view, collapsed floors, bent rusted iron, masterpiece, black background, layers, corners, cinematic, hyperdetailed, photorealistic, hyperrealism, octane rendering, 8k, depth of field, bokeh, architecture, ssao, hbao, shadows, art by zdzisaw beksinski, arthur rackham, dariusz zawadzki