Here's my interpretation of the Steven Alan lookbook style.
Neutral colors, a pleated skirt, accessories kept to the minimum, slightly tailored items like a shirt or a jacket to pull it all together.
As Lin pointed out it's easy to recreate the looks with basics from one's closet.
Uniqlo linen jacket
h&m grey sweater, sleeveless shirt and scarf
Minelli espadrilles wedges