I'm not the only one who thinks that, and complaints have been loud and long on Blizzard's forums.The official response is interesting, and a fairly clear insight into the problems - which is essentially beauty, or rather in this case, aesthetic parity, is in the eye of the beholder.
Senior Artist Dusty Nolting is focusing on the female model—here are his thoughts: The Horde has classically been about brutes, blood, and thunder.
The Blood Elves bring a bit of subtlety to the Horde, and I think that was one of the most important aspects of the Blood Elves to maintain.
New character models are just one small change coming to the game in Warlords of Draenor.
Chris' hands-on is a better look at the big picture.
Thanks to Moore's law , in terms of advancements made in PC hardware, that might as well be a century.