There are many ways of framing your image. The generic one is called “Framing”, which is quite broad in scope, while the other is called “Frame within a Frame” which is really a more strict subset of “Framing”. Here is a good video explaining what “Framing” in photography really is. https://www.youtube.com/watch?v=MSzSkuUDrTc
The inspirational video I used for today’s session is by french photographer Serge Ramelli
https://www.youtube.com/watch?v=OaAfSfyK4I4