according the spongebob writter, he said that the original was actually a painting which she took a picture of herself using a timer of the painting to create that iilusion. as for her motive it is unknown some say its to show off her surprising nature of a pufferfish.
she has a framed photo of herself walking through her door
the picture is already on the wall. which is confusing, because if she took the picture how was it already on the wall?
Modern Warfare : Duck wars
Battle in the trenches
If Kancolle was realistic