Very interesting.
Wanna know what I think? Guerrilla marketing, possibly for a movie. Diverse folks, all using pre-rendered “stuff” for insertion into photos. It continues to get more and more complex...till it gets into the mainstream conciousness...then a summer blockbuster or perhaps a new X-files movie.
Could also be some really cool tech from Military or some other source.
Alien...eh, real real unlikely but greater than zero.
As for whether it was made by Alien Technology?
Dunno, Alien Technology Inc. is headquartered in Morgan Hill, very close to the recent sightings...