Her eyes are very dilated. Either sexually aroused or she’s tripping.
She has brown eyes and wears blue contact lenses.
Hmm...if Hilly’s eyes were that dilated, like for an opthalmic exam, the camera flash would have blinded her.
There is hardly any reflection off of her right cornea. Looks really strange. Probably someone retouched the photo to get rid of a red reflex, but only did one eye.