The roomset shown might look real, but the tiles depicted are not. The tiles shown were added onto an existing roomset to look as though they were there all the time.
So why go to all the effort? The reasons can be many and varied but often boil down to cost; it is less expensive to employ a skilled graphic designer to artificially render the room than it would be to employ tilers to tile a room (assuming that room is available for such upheaval) and interior designers to accessorise. And the beauty of this approach is that the same room can be adapted to different tile ranges again and again.
Buzz Creative Design's experience in the tile industry is invaluable in understanding the nuances of ceramic and stone-based décor, though the art of artificial rendering has endless possibilities.