This photo changed the color saturation, turning the chairs pink to create a more cartoon yet real effect.  There was a small Bitmoji added in to create the fantasy effect while still being a real photograph.  

This picture was playing with saturation and adding a pixel effect.  It is interesting because although a photograph of real life, it looks computer generated.  

This photo was playing with saturation as well, and depth of field.  The image was also sharpened a bit and the leading line is what draws the eye.  

This image was an effect called 'posterize' and created an unreal/cartoon effect.  The word sick was added in for irony although it is unclear if that transferred.