Many photographic subjects were developed by themselfes.
In retrospect you notice that there are special principals recuring again and again and there will be a a point where a series has grown - and you only have to give it a name. I've made this experience with the subject "people in landscape" (especially in cities).
The panoramic frame gives the unique possibility to produce very wide pictures - but nevertheless they have a tension. - The person may end on the margins of the picture but always forms the centre.