Masterpiece illustration, low shot, closeup of 1 child sitting on sand, smiling with a cute face, extremely detailed big eyes, pigtails, and blonde hair, building a sandcastle with a plastic bucket. The scene is filled with dramatic lighting and sunlight, with lens flare effects, capturing the beach environment with shells and sea life. Enhanced quality at 16k UHD HDR. The focus is on natural beauty without imperfections like cloned face, crossed eyes, or mutated hands. The image is seamless with no distractions such as text, jpeg artifacts, or watermarks. The end result is a charming and vibrant depiction of joy and creativity on the beach.