[]I like the Chevaliers a lot, frankly all mounted bodyguards should follow this pattern: unique heraldry. I understand sometimes you may not know what to do and end adding lilies everywhere but heraldry uniqueness is something we know from chroniclers themselves and common practices among nobility(arms breaking for appanagists and padronanza granting for vassals, cities and nobles marrying with blood princes/princesses).
Quote from Gesta Philippi,The Philippide, and Guillaume Guiard.
vexillo scilicet floribus lilii distincto
[you may find better translation of following poem, no joke ]
Gales of Montigny bore...
Of fine and shining blue the insigna
Of golden lilies scattered
All go to the royal insigna
Where golden lilies are looking at them[nb: them: elite knights and the militiamen from the northern french comunes who answered the call from Philippe Augustus]
Yes, that means there is only one banner with lilies, it is very distinct among others to the point you can see it from afar, and by extrapolation only Philippe Augustus is wearing the inherent lilies-sown blue tunic over his hauberk. Banner, tunic, shield would have been all unic to the king. Its a specific thing reserved to the king, it marks his personal presence on the battlefield. And this is also the meaning of ancient word for heraldic arms: "reconnoissance", a distinctive sign you recognize on someone.
Gales of Montigny on the right appears, while Philippe Augustus is charging alone(ok armor/weapon typo-chronology is not great)
Also...for the model in faction menu as on battle, something often forgotten about Philippe Augustus: he's always represented with beatiful traits in paintings and medieval scripts, here above again, he looks normal, and on all possible modern and ancient depictions. However, the reality is that he kept sequellae from the Crusade episode, where he was affected by either typhoid, scorbut or some decease like that, which resulted in him becoming bald, losing nails and one eye: its not clear how it looked, maybe the eye socket was empty or more likely it was looking like what is called a "leukoma", full or partial white-ish eye.