Tower of Fantasy characters in sci-fi setting HD Wallpaper

Four anime-style female characters are gathered in the foreground. Behind them, a dark, futuristic cityscape is visible under a starry night sky with a prominent pyramid-like structure. The character on the far right has long blonde hair and wears a red outfit. The character next to her has black hair and wears a white and green uniform. The character to her left has white hair and wears a blue dress. The character on the far left has dark hair and wears a blue and white outfit.