[@Nallore] For her descriptive appearance:
Rachel is portrayed as a pale, average-heightened young woman with a very thin, fragile figure, that may be the result of eating less of what is being given to her. She has long, flat brown-black hair, with eyes in the shade of mossy-green, while wearing a white mental-hospital gown. 

Also, here's another image:
[img]https://i.pinimg.com/originals/8e/26/c2/8e26c2c3740ccd914ddbb0628bd1baa9.jpg[/img]