Gravity Falls

A girl with long brown hair and a yellow headband wears a red hoodie and holds a crystal ball, her expression shifting from concern to a slight smile as she looks at the orb, with a glowing yellow pyramid and two skeletal arms behind her; the scene then cuts to a boy with dark hair and a purple shirt, smiling gently as he looks forward, with a faint, larger figure of a man in glasses and a vest visible behind him, surrounded by small glowing stars.