This cool canvas art displays Avengers in battle mode, its a still taken from the movie Avengers: Age Of Ultron.
Iron Man is on the center of attention in this poster, to the left of him we can witness the Hulk, Black Widow and Hawk Eye in action. Towards the right of Iron Man Captain America, Thor and Scarlett Witch are displayed. Vision is shown above flying over the Avengers. The background displays multiple robots who are followers of Ultron, looking to charge towards the mighty Avengers. Background of this image also shows a lot of smoke around to hint that there has been an epic battle going on.