The Shayar is saying that the beauty of those maids resided within your very faces; who else could possibly compare to this rank.

This couplet is a profound declaration of ultimate perfection. Mir Taqi Mir is stating that the beauty and grace (husn) found in the beloved's very form (suraton) are unmatched. He suggests that if anything or anyone deviates from this established standard of perfection, it loses all value. It is a declaration that the beloved represents an ideal that cannot be surpassed—a beautiful form of devotion.