I would try the Woodcliff Lake, it has a warmer tone than the lighter greys.

I don't know how hot it gets in Auckland in summer (I've only ever been to NZ in winter!) but if it gets hot, then go for a pale colour. Dark roofs should be kept for cold places!

I think that bathroom really suits the colours. If I was intending to stay in the house long term then I would do it.... why not enjoy the colour and look your love. If you are going to sell in a few years and you are thinking it might be too bold then maybe just do one wall - after all the new owners can paint over it.

Just finalising kitchen colours. Soft Matt black velvet prime laminate which will be the back of the kitchen colour Island will be soft Matt surrender. Marble look prime stone which will also be the splashback I'm just worried about the flooring I've chosen it's meadow cortex ? But is the colour too light? Shall I go darker? Wld love to see other vinyl floors with Matt black ? I have grey Carpet in the lounge area all open plan. Don't wanna stuff it up such a huge investment