The floral pattern on the doors is etched into the inside face of the glass, not the outside, and there are two reasons for that.
The practical one is cleaning. An etched surface is minutely rough, and a rough surface facing a room collects dust and finger marks and holds onto them. Turn the etching inward and the face people touch is smooth glass that wipes clean in one pass, while the pattern sits protected behind it.
The second reason is what it does to the pattern. Seen from the room, you are now looking at the etching through the thickness of the pane. The design gains a faint separation from the surface - it sits slightly behind the glass rather than on it - and when the internal lighting is on, the light catches the etched face from inside and the pattern lifts.
It does mean our glass artisan has to work in reverse, cutting the design mirrored so that it reads correctly from outside. The layout is drawn on the outer face, taped, and the whole pane is worked from behind.