Four girls from Sword Art Online HD Wallpaper

Four anime girls are shown in the foreground, with a fantasy landscape in the background. The girl on the far left has light blue hair and is wearing a green jacket. Next to her is a girl with long black hair wearing a black outfit. The third girl from the left has long blue hair and is wearing a white and blue outfit. The girl on the far right has long purple hair and is wearing a dark outfit with red accents.