Cool Ultron Sentry Concept Art For Avengers 2 By Rodney Fuentebella

Marvel Studios' conceptual artist Rodney Fuentebella has updated his website with designs he worked on for Joss Whedon's Avengers: Age of Ultron.
In Avengers: Age of Ultron, Ultron creates and controls artificially intelligent robots. He's able to simultaneously control all the individual Sentries and if he need be, he can take direct control any individual Sentry by moving his consciousness into them.
When Tony Stark jump-starts a dormant peacekeeping program, things go terribly awry, forcing him, Thor, the Incredible Hulk and the rest of the Avengers to reassemble. As the fate of Earth hangs in the balance, the team is put to the ultimate test as they battle Ultron, a technological terror hell-bent on human extinction.