FROM TOP TO BOTTOM:
White hat- Vintage
Cateye sunglasses- Secondhand, Mustang Exchange
Dress- Secondhand, Savers
Socks- Romwe, www.romwe.com
Lace-up booties- Wanted, www.wantedshoes.com
Notice that most of the outfit is comprised of secondhand staples. If you got your dress from Urban Outfitters or Forever 21, it's probably not 'authentically twee'. There's a good chance this daisy dress came from 1992 thereby giving it at least twice as much street cred. Because street cred counts in the Tweeniverse. (It doesn't.)
The pattern on this dress is not your average "floral print". A small, realistic depiction of roses is not nearly as twee as a campy series of graphically-rendered sunflowers. Trust me on this one.
The cat-eye sunglasses are distinctly vintage and non-conventional. Gotta look like you support local "mom and pop boutiques" vs. corporate retailers that mass produce colored wayfarers.
Little lace-up booties. Because macrame is twee. Alternatives include oxfords with socks and loafers with tassels. D'aw.
Hope that helped and PRAY that my subtle sarcasm wasn't lost in translation. I think that if I use the word "twee" one more time (oops!) your ear canals might self-implode. Guess I'll leave you with this: style is one part fashion and two parts identity. Your character and closet are closely intertwined!
Everything is infinite,