Photos stores the images inside it's own library structure. If you edit an image from photos in an external app (eg photoshop), it will create a temporary copy for photoshop to edit, and then after editing, bring the edited version back into the library. With this workflow there is no way for photo shop to re-open that image, except to do it from photos via "edit with". But then you lose all edit history.
The alternative is to export the photo from photos to a folder, where you can edit it in photoshop, but then you won't have the version edited by photoshop within photos.
Furthermore you MUST NOT edit anything inside the photos library.photoslibrary package except with the photos app. No edits in photoshop, no manual moving or copying with finder, nothing. If you do you are risking damaging your library and losing access to your photos.
PS - nice picture by the way🙂