It might be wrong to call these images for “mature” but by that I mean a more adult style, more conventional. It is perhaps not quite the right expression – traditional, understandable, predictable, classical, timeless & so on. A bit of a hotel feeling, perhaps a little impersonal because it’s not decorated, in the sense that it doesn’t overflows with things. Few well chosen items such as art, antiques that breathes style, heavy draped curtains & so on.
It’s usually liberating environments with everything in its place. Often organised, very tidy & neat. It can of course be colourful, slightly playful but in a sober manner. Still, in lots of different styles – classical, city, rural, modern, as well as various expressions & materials of course.