Ruby Hoshino and Aqua Hoshino from Oshi no Ko HD Phone Wallpaper

The top panel shows a young woman with pink star-shaped eyes and a peace sign over her face, sticking her tongue out. The bottom panel features a young man with light hair, looking to the side with his hand on his forehead, with a dark shadow behind him. Both characters are depicted in a stylized, anime art style with dramatic lighting.