As posted by Ryo_Redcyclone on Twitter, Yasmine's post-fight hair down animation appears to be a reference to the Phillippine flag being flipped in times of peace and war.
Likewise, the Phillippine eagle can also lower its crest depending on its mood.
Minovsky
Looking at the green-eyed bird design on Yasmine's karambit knife has me convinced they modeled her hairstyle after the crest feathers of the endangered national bird of the Philippines, the Phillippine eagle.
