This week was all about dainty details. And the winners are...

Eva Mendes in Andrew Gn at the "Last Night" premiere in Toronto. Proving we've come a long way from the days of Austin Powers, Eva shows that velvet, when sophisticated in color and proportion, can be dead sexy, baby.

Odette Yustman in J. Mendel Resort at the "You Again" premiere in Los Angeles. Ever since Michelle Williams reintroduced ochre to the red-carpet coloring box at the 78th Annual Academy Awards, stars can't seem to get enough of the seedy hue-and it's easy to see why. Delicate draping and an off-the-shoulder neckline add an old fashioned feel to this chiffon gown, which happens to be my personal favorite of the five.

Eva Longoria Parker in Georges Rech at the Par Coeur Gala 2010 in Paris. Fit for a seductress, this gown oozes sex appeal from lacy, scalloped neckline to train. The tawny shade of the silk underlay serves as a richer, fall-forward take on nude.

Kristen Bell in Valentino at the "You Again" premiere in Los Angeles. Part sassy, part sweet, this lemondrop of a dress is right on cue with Kristen's flirty approach to style. She gets bonus points for mixing things up with an edgy, studded clutch and matching nude sandals.

Blake Lively in Zuhair Murad on the "Gossip Girl" set. While this look wasn't worn to an event, it was modeled on the red carpet that is the "Gossip Girl" set. A combination of charcoal-grey lace, drapery and exquisite beading, the decolletage-bearing sensation is sure to be a scene-stealer. Watch out Blair Waldorf!

Photos (left to right): Arthur Mola/Getty Images; Frazer Harrison/Getty Images; Francois Durand/Par/Getty Images; Frazer Harrison/Getty Images; Marcel Thomas/FilmMagic