Jock has unveiled some of the early concept art he created for the upcoming sci-fi thriller Ex Machina, which marks the directorial debut of author and screenwriter Alex Garland (Sunshine, Dredd).

Opening Jan. 21 in the United Kingdom and April 10 in the United States, the film centers on a computer programmer who wins the chance to spend a week in the mountain retreat of a gifted Internet billionaire, only to learn he's to participate in an experiment involving artificial intelligence house in the body of a robot girl.

Jock, who worked with Garland to design Ava, the film's artificial intelligence, shared some early versions of the character on Twitter (not all of which are safe for work). "I was on the film very early, so after I finished there was a lot of work done by the FX people," the Wytches co-creator explained, "[plus] other factors that led to her final design."

See more concept art from Ex Machina on his Twitter page. Jock's growing filmography also includes Children of Men, Battleship, The Losers and Dredd.