John Souch sits in the centre of the value range, lending the palette a sense of even, sustained light. Neither warm nor cool has the upper hand here; the equilibrium between the two generates the palette's visual energy. Chroma is held at a comfortable level - distinct colours, but no single hue is allowed to overwhelm. The most saturated colour, #E1AC71, is reserved to 6.7% of the surface, where it acts as a focal punctuation. At 59 units of value range, the palette has the tonal breadth to sustain complex spatial readings. Together these qualities point to the open-air Impressionist method: recording light rather than local colour. This is the light John Souch preferred, made measurable.