Painting on limestone from the last Ice Age. Lascaux holds some six thousand figures, almost all animals, in iron-oxide reds and yellows, manganese black and a little charcoal. Humans are rare and schematic: a stick figure in the shaft, hand stencils blown around a palm.
Only earths and soot are stable without chemistry, so there is no blue, no green and no white. That restriction is the clearest era tell in the whole gallery. The wall itself did the modelling: bulges became flanks, cracks became backs, and firelight made the overlaps move.
A low-resolution noise field tints the wall. The figure is reduced to an outline silhouette and filled with blown-pigment particles that ride the body's faces, then a soot contour is dragged over it with a shaky pen. Hand stencils, tally marks and a small animal are stamped around it.