Humans. Lots and lots of humans. Charming, quiet villages with cows and chickens. Mills and farms and bakeries and a lone temple of Helm. With humans in them.
As it stands, it's a little too diverse for me. In act one you go from Dragon-riding Githyanki to Mind Flayers to Devils and Imps to Goblins and Worgs to Tieflings to Druids [which of course are represented by only two humans] to Goblins, Trolls, a Svirneblin and then a Half-Ogre in process... Then, unto Drow, Duergar, Myconids, Minotaurs, a Bullette... Where are all the humans?
