“As Charles has grown older his features often adopt a kindly, smiling expression with narrowed, wrinkled eyes and lips upturned at the corners.
“His constantly steepled brows throw a touch of anxiety or concern into the mix though, as well as hinting at some self-pity.”
Princess Anne, on the other hand, appears more confident in her role when at official events.
Judi explained: “Anne’s features tend to involve raised, arched brows and widened eyes and a smile that is either suppressed or tilted down at the corners.
“Her pose tends to be upright and assertive, with her arms down at her sides rather than acting as a partial barrier or self-comforter.”