Values in Richard Doyle rest in the mid-range - neither dramatically lit nor steeped in shadow. Temperature is cool-dominant, with blue and green families claiming the largest areas. All colours lean toward grey, building depth through value rather than colour punch. #AA8C64 delivers the chromatic peak at only 5.0% - a small shot of colour with outsized visual impact. Value range is moderate at 41 units - enough contrast for legibility, not so much as to fragment the tonal unity. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. Taken together, these qualities constitute Richard Doyle's chromatic voice - distinctive enough to be read across an entire body of work.