1.Smart use of repetition, draws viewer's  eyes to the main object

2.Balance diagonally

3.bigger aperture, shallow depth of view, add more dimension to the piece.

4.Capture of the natural look(fleeting moment)

5.Contrast of mess and serenity(busy activity in leisure time)

One thing that distinguish his work is his amazing use of mirror. 

(So why does he use mirrors so much?

The Mirror Gazer series --- Narcissus of High Bohemia in early years

In Beaton's early years, he portrays himself as a youth who conflicts with a bourgeois patriarch, because of his social identity(his father is a timber-merchant). He wants to enter the realm of High Bohemia in order to quit middle-class patriarchy. So he elects a social group where each of the member has narcissistic identification. "the body of Narcissus flows out and loses itself in the abyss of his reflection". So he chose to use mirror to show narcissistic in his photos in order to achieve high Bohemia theme.)

But later, he shifted focus but he was still obsessed with resemblance. In stead of mirror, he took photos of sisters, twins, a person with a doll, reflections, shadows to incorporate resemblance in his works. This resemblance not only serves as an excellent repetition but also contrast. It gives the viewer a strong visual impact.

Also, when people are looking at the mirror, the reflection in the mirror is actually how they see themselves, there is less pretence and therefore more natural.

The following photos are examples of how he uses shadow reflection and doll to express resemblance while giving strong contrast.