More Mature Wardrobe?

i'm donating a lot of my old clothing to Goodwill and then going on a shopping spree with my christmas money. i would love to have a more mature, adult wardrobe while still having my unique and fun style. i love lace, and prefer black to brown. my style is similar to that of Aria Montgomery from Pretty Little Liars (mature ogy, i know). Artsy, bohemian, rocker-chick. thanks in advance :)