I think that ceaserstone or marble would compete too much with your tiles and could look odd because of that. In the examples you provide, the one lot of marble stairs are with a very plain tile and the other looks like it matches the floor exactly. Your tiles have a bit of a swirly pattern so unless you chose a very plain stone/marble it would clash IMO. Also, ceasarstone can chip and I don't think it would be a very practical option for stairs. Timber would add a bit of warmth to your whole sleek look while still looking modern, and be something to tie your front door in with so it isn't the only warm looking thing in your whole light coloured area.

Stunning space but I think I'd go for a huge artwork. Janet

There is no way I would put anything that in any way resembles a bookcase there . I love the pots , and I'd incorporate them , but you only have to look and see ( or maybe see the irony ) -- great big picture windows looking at the wonderful greenery , and not a plant to be seen inside . Just me , I'd do a mix of styles and cultures -- those pots , some colourful glazed terracotta ones in brighter earthtones , green leafy plants , a bamboo , a fat cactus , a tall cactus in the pots , some river rocks and some pebbles ( in a frame if you have kids ) -- almost a fusion mixed garden of contemplation . $1000 max for a subtle or bold as you wish feature . . . . . . . . . .

The private firepit is my favourite. I'm not one for pools but a cosy nook away from the hubbub....yep.