What accessories/jewellery should I wear with this dress?

[RainyAfternoon]

Hello! Please could you help with a little bit of styling? I have bought this dress in size 14. m.laredoute.co.uk/ppdp/prod-350023079?docid=221816#shoppingtool=treestructureflyout&facets=8779299%7Csize00014_14 For an informal Christmas party (not work!). I am planning on wearing it with ankle boots and slightly opaque tights. I am hoping it will look okay and be forgiving on my post kids wobbly bits in the middle. Legs are still okay though! We will see. If it is too short I might wear it with jeans.

But I have no idea what I should be wearing with it! I have shoulderlength blond hair… Does it need a pendant, or just some earrings and a bangle. I rarely go out in the evenings, but am really looking forward to the chance to dress up a little bit. Please could you give me a bit of advice?! Many thanks!

I would wear a long pendant necklace, something like this -
uk.accessorize.com/view/product/uk_catalog/acc_2,acc_2.3/1826778200
In size and length, not necessarily this pendant, but big enough to have a little bit of weight to it.

yes its lovely but very plain so lends itself to a big pendant and earrings and bangle too, nothing small and understated bigger and blingier the better.
I rather like the lagenlook heart pendants like this one you can get earings to match too but the shops are full of lovelystuff at te moment.