I think your benchtop material choice really depends on how both you and your husband live and what level of natural wear you are comfortable with showing. Natural wood benchtops to me are very similar to natural stone or stainless steel. The surfaces will naturally age and show use, scratches and imperfections much more than say a caesarstone if it's a high use area but some people love that look and it goes well with an industrial or natural style. My wife and I thought long and hard about it but realised we want the benchtop to look as new and clean each time as possible so opted back for caeserstone (Ocean Foam) which hid small stains and dust :)

My son used to help me cook in the kitchen - he is 190 cm, I am 175cm. I have an old-fashioned breakfast bar which is raised above the level of the kitchen benchtop. My son would stand at the raised section, I would stand at the lower section, it worked really well. An alternative might be to have a pull out step in the kick board spaces for your wife to stand on - I don't know if it would be high enough, but it might make things more comfortable. Speaking from the point of view of a tall woman, I will have my next kitchen cupboards and laundry raised at least 10 cm to make my life more comfortable - bending forward for any length of time is seriously UN comfortable!

@Mc10 - We are also recirculating - and we are venting this through a gap in the kickboard where we will eventually also install a mesh / metal grill to keep bugs out etc. When the extractors in full flight it does throw out quite a breeze so make sure wherever you decide to vent isn’t somewhere that will annoy people who are sat - luckily where we vented is into where people just walk though. We hardly lost any storage if you look at the pic I posted what looks like the first drawer at the top is what we boxed in to price clearance and access - I think it was about 15 cms - not that significant as lots of storage space elsewhere.

Your ensuite definitely looks like tiles are pink in the original photos. But, then the last photo posted the colour is a greyish, pink. I am sticking with my original choice, and recommend a white vanity top, no veining. You also have white tiles and a white toilet, so this will join those components. Let the vanity back splash be the interest with out competing with another surface.