This is an awfully Lindsay Lohan-esque outfit for a woman that normally looks so good. I like the dress, the sandals, and the glasses... but somehow I can't help but wonder what this could have been.
Imagine another tank top layered under the - er - incredibly brief dress. A "pop" as they say, of color; something strappy (OO! Multiple straps!) but not bra-strappy. Imagine that this isn't a tank DRESS, but a long tunic worn over white shorts, keeping the same sandals. And of course, the cute brightly colored tank top that she'd be wearing underneath the tunic.
There's a way to look trendy and youthful, I think, without resorting to Linsdayism.