The girl who posts there lives in Amsterdam, and has been taking photos of herself every day since 2006. The photos are interesting because they demonstrates how much a woman's facial appearance can vary due to presentation, i.e. hair, makeup, skin, clothes color, etc.
The photo set is particularly telling in this regard because the girl varies the elements of her presentation significantly. Her hair length goes from fairly long to very short, her makeup changes type and quantity, her hair color changes, and she wears a good mix of colors and types of jewelry. I've copied a few images below to illustrate a little bit of the variety. Notice how much better the girl looks in, say, the bottom right or left relative to the top right or left. The difference is pronounced and controllable.
There is also a time lapse video that shows the change in her appearance by quickly sifting through the photos chronologically. When you look through the pictures and video, pay attention to how the shape of her hair changes her attractiveness, how jewelry can compliment or detract from her facial shape or features, and how the various colors she wears work with her complexion.
While no one has the time to study the whole collection in detail, a cursory (or even slightly more careful) perusal of the pictures can help draw your attention towards the kinds of things about your appearance that make a difference.