The key to wearing all over glitter is to have equal amounts fabric and skin, so for example, have a split leg or cutout shoulder.
Embellishment is about balance...little bits here and there in contrasting colours for maximum impact.
Navy is the colour du jour and works well with silver accessories. It also suits blondes perfectly!
The easiest way to create an hourglass figure is to have something going on around the waist. A matching ribbon tied as a waist belt or strands of contrasting fabric creating lines around the ribs are some of your options.