Need Help With My Outfit please !!!!!!!!!!!!!!!!!!!!

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I am going out of my comfort zone with this outfit , so could really do with some tips , suggestions on how to accessorize......
www.janenorman.co.uk/fcp/product/buy-fashion-look-fabulous/girls'-night-out/one-sleeve-jumpsuit/11100?colour=black

link here

Have you bought it already?? Its very abba-esque. Because its one shouldered it would be quite hard to wear a necklace with it so would just stick with a belt and glam bracelet and clutch bag.

I'd go for some nice dangly earrings, a cocktail ring and a fab clutch.