Per the Australian Photographic Society definition. See https://www.a-p-s.org.au/index.php/nature-definition

Comp 2404 – Open and Set – Architecture.  Images showing the design of buildings, bridges etc.

Comp 2409 – Open and Set – Still Life. A photograph of one or more inanimate objects that evokes a mood, communicates an emotion or has a commercial or symbolic message.

Comp 2407 – Set only – Special Trophy – People.  An image that captures the identity, personality or essence of a person or persons using lighting, composition and posing.