This process is called double exposure. This process gets an objects and exposes it within a background image. All I did was use the quick select tool to crop out the object and made a new layer with it. I then added a creepy forest background over it and then I selected the object layer and made a layer mask on the background with the silhouette of the object. I then duplicated the object layer and made a layer mask without any silhouette. I then used a black brush on the mask and just started getting rid of and adding stuff back.
A guy eating a muffin inside of a muffin. The process is the same as the first part.
