A 13-year-old boy with curly brown hair and vibrant blue eyes in a 3D render style. He stands in front of a mystical waterfall, with a secret passage hidden behind it. The scene is filled with lush, vibrant greenery and the soft glow of magical lights. Alex looks determined and curious as he prepares to enter the passage. --ar 16:9 --cref <https://s.mj.run/koFjL9henI4>