The value structure of John James Audubon is mid-key: quiet, controlled, and cohesive. Cool tones set the register here - the blues and greens easily outweigh any warm accents. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. #705B2C functions as the palette's exclamation mark: highest chroma, lowest percentage (3.5%). A value spread of 68 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. Palette 6 sits within the larger chromatic argument that John James Audubon's complete body of work advances.