I have the modern equivalent of a shag pile rug in our bedroom: constructed by eco friendly, third world home business using T-shirt manufacturing offcuts. This rug has the same depth of a 60's shag pile but different texture. Vacuuming is easy (for my husband) and much nicer to pop the feet on when getting out of bed in the morning than the polished floorboards. Other than this and a couple of persian rugs, carpets are totally OUT in our home.

I didn’t think this would be possible, but I searched “white wash slate” on Pinterest and there were a few posts 🤔. Would be interested to see how it turns out. Good luck. https://www.pinterest.com.au/pin/251779435401045832/

We would recommend two choices - matching your wall colour with a tone of the slate and your roof or you could have the slate removed as well a plasterer to fix and repair the patches then you are not limited by colour selection to match in the slate. A possible use for the slate if you choose to leave it there would be a floating seat (painted black like your roof) just below the slate - use the slate as a seat back or continue the slate up and create an outdoor BBQ area with the slate as a splash back for the BBQ. You could also install a floating bench (but check the weight bearing possiblities of the wall). A great landscape designer &/or builder could help you with a concept plan - good luck! The yard looks like a great space - BBD

White-matte cabinets (flat panel, not shaker) and white bench (or maybe epoxy sealed marine ply??...siriuskey can tell you about that), mirror splash. Love the ceilings. I personally would go for a modern, stream-line, no handles, integrated appliances look. This space has real potential to be very cool, even with the slate. It doesn't need any more more texture or darkness. This is a nice kitchen, you should be able to sell it on ebay.