Ozu was a master of composition. His films, particularly his postwar films, are renowned for shots which linger on 'empty spaces' for a while, in between the action - so-called 'pillow shots' - they mark time, but also allow the viewer to savour a reflective moment. These shots are stunning compositions of balance and harmony, and here are a few:
The great historian and critic of Japense film Donald Richie called Ozu a modernist:
You can read the rest of this interview in Midnight Eye, an interesting online journal about Japanese film, here.
In his excellent current TV series 'The Story of Film', Mark Cousins calls Ozu 'perhaps the greatest director to ever have lived', and I'm inclined to agree. Here's a great 11-minute introduction to Ozu from the 'The Story of Film':