A new batch of Avengers concept art reveals a way different version of the alien Chitauri. In the movie, Loki's minions are merely a group of grey beings, perfect for taking punches from our dashing heroes. And they were... perfectly fine. But in this new concept art, these bad boys look like something dreamed out of the Rock & Rule cartoon.
From concept artist Phil Saunders, behold the awesome glory of the Chitauri that could have been. Plus alternate Iron Man armor designs, and the Helicarrier.