Earlier quoted context omitted.
Ok, but I wonder if it really needs to be real time like this? Wouldn't it make more sense to have some kind of button: somebody makes a pose, takes a picture, the picture is run through some kind of transformation and comes back as a painting that stays there until someone takes another picture? Wouldn't the illusion of art be better that way? (It would not be a "mirror" anymore though.)
I think it has to be either real time or a very low framerate, like once every 30 seconds. That way you have time to see each "painting"
IMO embrace low frame rate. Better energy use if its AI based on the first place (cheaper, environment... more cycles for fancier effecs) THEN pair that with e-ink display (also good energy use), I'd go for old school charcoal style but color e-ink is a thing. e-ink with some additional effects could resemble a physical paper moreso then a LCD/LED and so would be less obnoxious in the darkness of night... AND this also could be a low key security camera.