Why don't you try a nice bold colour like a red, blue or yellow, which will instantly make a difference from your standard all black?
I tend to feel most comfortable in a short bright dress with black leggings and heeled sandals [[http://www.asos.com/ASOS/ASOS-Shift-Dress-in-Crepe-with-Cut-Out-Back/Prod/pgeproduct.aspx?iid=4325400&cid=8799&Rf-800=-1,128&Rf-300=1880&Rf-200=2,6,33,9,1,8,3,11,7&sh=0&pge=0&pgesize=204&sort=-1&clr=Yellow&totalstyles=429&gridsize=3]Like This]
But with a size 8 figure, you could really pull off a nice bodycon dress? [[http://www.asos.com/Lipsy/Lipsy-Longsleeve-Wrap-Front-Bodycon-Dress/Prod/pgeproduct.aspx?iid=4679956&cid=13720&Rf-300=1880&Rf-200=1,33,2&Rf-800=-1,139&sh=0&pge=0&pgesize=204&sort=-1&clr=Red&totalstyles=32&gridsize=3] This?]
But ASOS is my go to site for "in fashion"