I don't mind the ai pics. Even the stabilized videos are pretty nice to look at.
But, I have a suggestion. Why don't you make some variations of all pics, and when you display them, if a user clicks on them, it would progress through the variations. Like. it's the /same pic/, but just how you've done the videos, you do some variations of the same pose, and that's the series of pics the user clicks through. that would bring the static pics to life, a bit.
Three times the work, I guess. But... you are playing with video, so... your choice.
Oh, and I've just started to play. So, I'll come back with my final impression once I've reached the end of content.