I am short on cash (so will return what I don't wear) and large of body 
I have either a plain black long skirt or plain black midi skirt to wear with either...
black silk top from Cos. I can't find it online but it's a bit like this but with shorter 3/4 length sleeves and a drawstring round the bottom but you don't really notice it. So v similar to www.cosstores.com/gb/Women/Tops/Long-sleeved_silk_top/46885-16207384.1#c-85346 fairly fitted on me.
I'd wear this necklace with it www.cosstores.com/gb/Women/Jewellery/Necklaces/Cut-out_circle_necklace/12757427-24051897.1#25769615 it's a lot shinier and brighter in RL
Or this top www.asos.com/pgeproduct.aspx?iid=4681691 which is cheaper. Wouldn't bother with necklace
Accessories for both are small black marc Jacobs bag, wedge pumps a bit like this 4.bp.blogspot.com/-GwyGoaHl-7o/T1D2kTRlBMI/AAAAAAAAMMc/DLjCqyG5qHQ/s1600/Asos+Black+Flatforms+006.jpg with a bright silk scarf probably
Neither perfect but I'm v fat so don't have much choice and no time for shopping.