I like these tiles. Their deep green glaze, slight irregularities and narrow vertical format give the wall a rich, almost textile quality. They work beautifully with the plants, timber and pink chairs.

I would probably have made the joints narrower, allowing the tiles to form a more continuous surface.

But the grout colour is interesting. Rather than matching the dark green tiles, it seems to pick up the lighter, muted green of the ceiling.

This makes the joints more visible, particularly the horizontal ones, but also connects the tiled wall to the rest of the room.

A small but thoughtful detail. Grout colour need not come from the tile itself. Sometimes it comes from somewhere else in the room.