The enormous space is now used for large scale events en TV productions such as the NOS 2014 year review (The making-of van het NOS Jaaroverzicht). MONK architects designed the new spaces including additional spaces for small creative companies.
The images are from the 'Day of architecture 2017'. The portrait image is a cropped version of the landscape image en shows the impact of the way an image can be cropped.
The landscape image shows the immensity of the space as a whole. The portrait shows emphasis the height of the space. This is achieved through the focus on the columns and the persons standing next to the columns. The provide a sense of scale and although these persons are also in the landscape image the don't have the same effect there.
My rule of the thumb: landscape emphasizes horizontal elements and portrait emphasizes vertical elements.