Frederick George Cotman is high-key - luminous, open, and weighted toward light. Temperature is cool-dominant, with blue and green families claiming the largest areas. Mid-saturation across the board: the palette has colour character without chromatic excess. #D8CCB1 claims 40.8% of the surface, functioning as the work's tonal foundation. Only 9.7% is devoted to #E4C66C, yet that small allocation delivers the palette's entire chromatic tension. 67 units of value range underpin the palette's structural clarity: the eye always knows where light falls. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. In the context of Frederick George Cotman's full range of palettes, group 4 represents one movement in an ongoing chromatic dialogue.