Hi Kate. Apologies for delay in answering. Since you mentioned the light grey, I popped out to a kitchen showroom to look at benches and colours for the cupboards. I have a sample of a soft grey Caesar stone with cool white doors. I think this will work. Thank you so much.

As the fireplace has the bricks visible , I'm guessing it isn't actually used ? I'd be tempted to have the TV directly above the fireplace -- almost where the mirror is , but probably the top of the TV at the level of that frieze or whatever it is called , and angled downwards . The mirror I'd have where it is height-wise , but to the right on that same wall . And I'd leave that drinks trolley where it is , with nothing above it , or maybe a period wooden framed picture or photo above the drinks trolley .

We have used black carcasses for a black and wood kitchen. Looks great and everything is easy to find. Cost an extra $1000 on the total reno but absolutely worth it imo. The white would look cheaper especially when pulling out the black drawers to see the stark white inside. We also opted for dark drawer runners.

I would look at a the following cabinet colours. These are Sherwin Williams colours, which is now under the Wattyl brand. Your paint specialist should be able to mix colour. With your busy quartz and the Saltillo floor something soft in the white to pastel green would suit.