Low angle is to make people look like they have authority. When use in horror films it makes the attacker or monster look powerful and scary. Its a clear indication to the audience who's in charge. I got a screenshot from the Purge. Here they look like their going to conquer the house. The low angle emphasises
how powerful and destructive they look.
High angle is to makes the audience have a view of whats happening around them. In horror the shot makes a person/thing appear threatening and makes the audience feel uncomfortable. Here is a perfect example i found from The Purge. The eye contact also looks threatening it adds to the effect. High angle is usally to show who has more authority and this usally means that they are under the authority however
Canted angle helps the audience feel distorted from the film confused even. This has been used in Devil it help understand that something wrong is happening. The world is up-side-down could mean all hell is coming from the dead.
Eye level lets the audience feel like their in the production I think is similar to point of view but it more of an outside over looking view to know what is happening and how the character looks and feels. Eye level angle allows the audience understand what the character is going through but being next to them.








