With a bit of work, I've managed to find a supplier used by our builder who has stock of the original vanity and basin!

1. If you are having white tiles on the wall, the same as floor (my preference) then the white bench top will look great. The kick board should be white to match white tiles and the bench will look like it is floating. 2. If you are having 'light' colours, and white basins, then the white bench top. 3. If you go with black benchtop with 'light colour', then I think you need to look at a black basin and keep the kick board black.

Nice. Colours blend well and look fresh and love the big mirror

Why wouldn't you put a decorative tray with decorative items to match under the makeup mirror? Lots of choices and it could include jars for makeup brushes, perfume, etc so it is useful too. You need to make it look deliberate - not an added after thought - or that you could not afford another basin!