A Ritual Chamber film still, low oblique from a dark control room: a near-empty institute chamber where a candidate machine-element rehearses behind a pane of one-way glass, watched by robed evaluators as silhouettes from behind (faces never shown). Large empty walls carry the cream-and-dark stepped-cross institute tile; old recorded conversations sit as labelled specimen-slides on a rail; risk-rate dials glow faintly. Minimal, deep near-black, hard chiaroscuro, clear and analogue tube-amp warm, only a trace of patina. One slate-grey grade; the single accent — a few glowing ultraviolet vials along the glass. A hexagonal honeycomb lattice is the real floor structure; one small mis-struck Bureau seal. Numbered callouts: (1) one-way glass, (2) conversation slide, (3) risk dial. One detail quietly wrong: a dial reading backwards. Nobody is afraid. Output in exactly 1122 x 1402 px, 4:5 portrait ratio.