I need advice!

I'm going to my friends party at her house next week and I'm thinking of buying something like this or one with the arms in but I'm not sure whether to wear it with Black denim shorts high waisted or a high waisted skirt. I know the bottoms must be black and not leggings but then do i have coloured shoes and accessories or black and sparkly. PLEASE HELP ME OUT WITH COMMENTS AND LINKS OR ANYTHING