Hair - With the cold/wind in the Vale, hairstyles where the hair is pulled back from the face would probably be preferred. This is merged with the relative wealth in the Vale which can be showed off through hair nets and pearl accents, with long hair being shown off as an indicator of wealth - having maids to brush and take care of it, but still needing to be pulled back due to the weather.
Dresses - Swiss/The Alps influences. Rich and detailed fabrics to convey wealth, relatively structured with high or covered necklines. Capes are useful to guard against the wind and lots of fur lined cloaks (again wealth), of course there's a lot of blue for house Arryn, but other houses (e.g Royce) would favour others (browns and blacks) but in similar styles.
Dressing Westeros - The Vale














