Architecture: Architecture can be a building or structure of any type, or any part thereof, including windows, doors, roofs, stairways, steeples, towers, domes, etc.
People/Animals: An individual or a group of people and/or pets or other animals including birds, fish, reptiles, or insects, a combination being acceptable.
Scapes: A scene as of land, sea, city, clouds, etc. can be part of scapes.
Photojournalism: A photo recounting a story or news item generally dealing with news events, human interest, sports, disasters, etc., are acceptable. (Cannot be manipulated in any way.)
Photographer's Choice or Creative: This category can be a photo of any subject. (This is an open category, and use of any photographic technique, photo manipulation, or software is acceptable.)