Well I'm no help with hair, but for accessories maybe a kind of chunky bracelet & matching necklace. Considering it's the classic little black dress some jewelry that's bright and stands out would work nicely.
:]
__________________
This is something I want, I want it so bad it's unreal.
And what's worse, I'm willing to work for it, which scares me.
So I suppose I'm plugging my nose and taking the plunge;
let's show those rookies how it's done.