A complete aesthtic PvE retrospective of Tempest Keep (Black Temple and Hyjal are in preparation ... there should Sunwell as well ;-)
See also: Triple trailer for Tempest Keep, Hyjal and Black Temple :
The Tempest Keep soundtrack was taken from "War of the Worlds (2005)" ost (which I havn't seen, I 've only seen the 1953 version). I had already use this soundtrack in the Exodarpart in a previous video : Frenezy Zerg Tour. I found that it fits well with Draenic architecture.