Ultron, Scarlet Witch, Quicksilver, and Hawkeye from Avengers: Age of Ultron HD Wallpaper

Ultron stands in the foreground, facing a group of Avengers. Scarlet Witch uses her powers, emitting red energy, while Quicksilver moves at high speed, leaving a blue trail. Hawkeye is armed with a bow and arrow, ready for action. The background shows a destroyed urban environment with rubble and a wrecked car.