Kingdom of Heaven's costume designer tackled a tough challenge: creating costumes for aristocrats who had partially assimilated into the culture, but still kept many of their European sensibilities and style cues. Eva Green's Sibylla is a prime example. She wears styles indicative of the Holy Land during the time, but with European touches.
Eva Green as Sybilla in Kingdom of Heaven. I loved her wardrobe throughout the entire film, largely because it has lots of flowing fabric, belts, and headgear. I like how the splash of yellow here offsets what could otherwise look like a sea of useless fabric.