I have seen both.
The steg painting doesnt look like one at all. It just has panels on its back so the creationists freak out.
I cant find anything about that picture, but i know all the paintings in that church were made in the 1500s because the other ones burnt.
My fault, I meant 1500 AD.
Ankor Wat has tens of thounds, probably hundreds of thounds of relieve carvings. It's the size of Manhattan. Everything looks like what it is supposed to look like. There are no abstracts, even the mythical Hindu Gods look like something recognizable.