Zdzisław Beksiński style, dystopian surrealism, apocalyptic landscape, Beksiński dreamscape, Polish fantastic realism. An immense abandoned chamber constructed from dark, petrified organic material, its walls curving inward like the inside of a gigantic skeletal rib cage. At the center stands a narrow, solitary doorway opening onto absolute darkness. The walls are covered with irregular Prussian blue discolorations, layered pigment, and deep stains that merge with the blue-black shadows. Long vertical structures descend from the black ceiling like fossilized tendons. A small, pale human silhouette stands at the far end of the chamber, emphasizing the oppressive scale. Cold slate-grey floor, faint dirty ivory highlights, deep indigo recesses, matte painterly surfaces, eerie stillness, claustrophobic perspective, subdued lighting, no glowing runes, no text, no watermark.