[wsgeorge]

From my experience, pictures taken at the normal human viewing height look uninteresting because they're taken at an angle we're most familiar with, which doesn't have much novelty.

Photos taken at unfamiliar angles will present their objects in ways we're not used to seeing. Which makes them less familiar and more stimulating. Which is more interesting.

[prawn]

I think this is correct. I'm a drone photographer and when drones became popular, you could take a photo from 50m up looking directly down of something plain like a beach and people would lose their minds. As that has become more common, further variations seem to capture more attention. I take a lot of photos from 3-5 metres up because most people don't walk around with ladders.