I really admire the white fiesta's, they always look nice, especially with dark alloys. What I would say about your list is in regards to the black tinted headlights.
I personally can't stand seeing it on cars (personally), I think it just screams cheap/chaviness to me. But it's not about what I prefer of course, I thought I'd just throw that in there. More importantly, just be careful about doing it. If you go to dark, you could potentially be breaking the law if it's deemed as not safe. If stopped by the police, they could potentially seize your car if they really wanted to, on the basis that it isn't roadsafe. So if you do it, just ensure it's not too much and actually emits a good level of light still. Plus you want your car to be safe still and avoid any accidents.
Other than that, as I say white fiesta's in general I really desire. I have a red edition ST-Line Mk7.5...I'm still undecided between whether I prefer mine or a pure white st-line