This is a perfect example of a Japanese garden. In Japan, they like to “bring the outdoors in”. They often have gardens, either in the house, or right outside a window or door, or a large opening, like in this picture. This is a way to enjoy the natural world, even when you can’t go outside.
Many Japanese gardens have a pond with fish and lotuses, and a tea house in the middle. The garden might have hills and valleys, or rocks and trees. There are many different kinds of gardens in Japan, but they all have one thing in common: they seek to imitate nature.
Besides this garden, I really love the wood floors. They give a clean, sleek, earthy look, and the furnishings don’t distract from the garden.