If i close my eyes, just now for example,while sitting in front of computer, wait few minutes, on inside zone of my eyelids they are appearing some random images, 2d flat, mostly grey color, it can be faces, places of nature, and some of them are very engaging,it is just like watching national geographic, when i start doing it while preparing to sleep while in bed, they very very fast take me to sleep without me even knowing it....
they look something like this, i made example here, but they are changing, sometimes they have much better contrast almost with details....

could you tell me exactly what are this ? are this hypnagogic or phosphenes ?
if hypnagogic - possible while fully awake with just closed eyes ?


thanks.