This would be described as a "separate or natural" example of self-portraiture painting, provided that Jesse creates a natural likeness of herself in her given style of painting. Other categories are historical inserted portraits, where one inserts their likeness into the character of a historical figure, inserting oneself into a group portrait and other portraits created with related objects in the image field.
Nick notices that he has an odd habit of calling everyone “Old sport”
The third one makes the most sense