Going into London to somewhere pretty swanky for a work xmas lunch which will follow into the evening for drinks. They'll be plenty of walking so the open toed shoes shown with it are not really a sensible option. Should I dress it down like in the pic with a black top? here or a have a blouse which I can tuck in and pull out a bit which will hide my tum.......not sure what to go with for shoes, coat, jewellery. I don't usually wear clothes that are so sparkley!