What Do You Mean, "Reality"?

I've just returned from an exploratory visit to The Engine Shed at Ford.
I'm looking for ideas for my proposed model railway layout.
The shop has it's own large layout in the middle of the shop which I stared at intently.
The layout seemed unremarkable, as layouts go, then I started to notice things.

On the station platform a woman in a red coat stood next to a pig and a dead man:

The fat bloke in ladies underwear:

Contrast those scenarios with the completely sensible depiction of a cow driving a tractor:

and the woman with the horse: