There are 50 photos per page (for a total of about 300 photos) and depending on your connection, it may take several minutes or more for all the thumbnails to load. After you reach the 50th sample, click the link to the next page of samples (at the bottom under the thumbnails).
If you don’t want to wait for the thumbnails to load, just click on the first photo and you can scroll through them via an ‘arrow’ at close to full size quality (depending upon your screen resolution and connection).
