Marvel Studios conceptual artist Ryan Meinerding has update his facebook page with some Hulk-centric concept art he created for Joss Whedon's Avengers: Age of Ultron.

The first image, which you can see as the article's header or just below, is the cover of Marvel's Avengers: Age of Ultron: The Art of the Movie Slipcase. The other two images were created by Ryan to show various facial expressions for the Green Goliath - even a creepy smile.

Check out the concept art below.

Update: 2 images removed per artist's request.

Avengers: Age of Ultron is currently playing at your local theater.

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