thanks how2girl, but I guess my question is more about polishing concrete that has been sealed/oiled than it is about concrete benchtops (hence those threads were a bit generic). A bit more research suggests to me that a sander is the tool to use. I'm thinking of attaching some used carpet to a sander. I'm still unsure of whether to use a polishing cream - I think it perhaps can't do any harm though, and may add to the shine. Then the question becomes whether it makes sense to add bees wax over the top. To me, it seems it would protect the shine. But I'm guessing all of this.

I don't recall seeing it but there are hundreds on Temple and Webster.

@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.