Gigapan images of entire Olympic stadium, you can I.D. individual faces

IMO (and YMMV and probably will) there's something intrinsically "wrong"
and unnatural when viewing that image.
One cause I expect is that the DR has been deliberately flattened to
suit the limits of output devices, so it's got a bit of the "cartoonish"
HDR look to it.
The other might be that there's effectively infinite DOF, and
particularly when the image is being panned, it just doesn't look natural.

"But is it ART?"