Usually people would call it a scary-pop up but sometimes its just reguarly called a demon face.
A portrait, this means a picture of a person, most portraits are focused on the face area of a persons body. I hope that helps :)
faceless cutout
You would call it a smirk
A picture exists of Gubler lying on the floor with a cat crawling around his face. The answer is most likely no.
yes
yes
A Picture Framer
grover clevland
A picture on a wall could be a mural, a painting, a photograph. It depends on the picture.
A posed picture can be referred to as non-candid, or a portrait.
Orbs are often caused by dust, water droplets, or other particles reflecting light in photos. They can sometimes appear to have faces or other shapes due to pareidolia, a psychological phenomenon where the brain interprets random patterns as familiar objects. It's likely not a supernatural presence, but rather a natural explanation.