John Closterman is low-key throughout, a quality associated with Nocturnal Bister - deep shadows dominate the composition. Warmth dominates - the palette of John Closterman leans heavily on the yellow-orange-red arc of the colour wheel. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. The highest-chroma note - #CCA07F - appears at just 3.6%, deployed as a precision accent against the quieter ground. A value spread of 55 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. This tonal restraint is characteristic of the John Closterman approach: colour serves light, not the reverse. This is palette 4 of John Closterman's sequence - a single chapter in a chromatic story told across many works.