Personally I find some colors more erotic than others, and some more playful... still others are a downright turn-off ( gold, copper, yellows, light greens, come to mind).
French is always a win-win, and Natural is good if the pedi is top-notch and the foot well pampered. One should not be forced to think of shoeing a horse when presented natural toes.
But overall there is nothing more off-putting to me than a poorly maintained set of ten, polish grown out and nails chipped, ... toe hair can prompt one to ask for the "check, please"
😀