In Morrowind, there was a lot more foreign influence in the general art direction. The imperials were very Roman-like, and the Orcish armor was obviously influenced by the Japenese Samurai, and the Dunmer tribes were really interesting... not sure what they represented though. It all felt really... historic.
In Oblivion, the general feel was the high-fantasy European King Arthur stories. There did not seem to be any foreign influence in it. Every single piece of art in the game was like this. Excluding maybe the Oblivion planes... there was no historic feeling.
Which led me to wonder what everyone would like the region of Skyrim to feel like!
I think more influence from the East and South America would feel very unique to the Elder Scrolls.