Pls help accessorise this for a wedding!!!

[indigobarbie]

Need major help, have 2 weeks to go and I'm still struggling with what to wear.
I have bought jumpsuit only it's a coffee colour and couldn't link the original link to the marks and spencer website?
Am planning to wear these wedges
I am 31, currently a size 16 (used to be a 12), with auburn shoulder length hair and still feeling very out of shape after DS1 6 months was born.
I still have SPD so the shoe thing is a bit of a pain, can't walk in heels anyways. What could I put with this that will make it look OKish?
Or should I send it back and start again......I can't go trailing round the shops to find anything :(

I'd go for a statement necklace - probbaly something in gold maybe

this one

or

this one

and a wrap there's a selection onthis page

thank you thank you max power I am such a plain girl and clueless to these things

you're welcome. my advice is try to make sure you're comfortable and remember, as long as you're not the bride, you're unlikely to be centre of attention