AI Video Prompt: Magical Heart Tree Growth

A cinematic, photorealistic 9:16 vertical fantasy video. The scene opens with a close-up of a smiling person wearing a dark green winter jacket and black gloves, kneeling in the snow. They hold a glowing, anatomical red heart and gently lower it into a small hole in the snow. As they release it, the snow naturally covers the hole. The person stands up and spreads their arms wide in awe. The camera tilts up rapidly as a massive, dark-barked tree trunk magically and rapidly shoots upward from the snow mound. The tree branches out, and hundreds of glossy, bright red, 3D heart shapes rapidly bloom across its branches. The camera then pulls back quickly into a wide shot, revealing the full giant heart-tree against a beautiful pink and purple twilight sky. As the camera continues to zoom out, a vast forest of identical magical heart-trees is revealed in the snowy landscape, with gentle snow falling. The red glow from the tree casts realistic warm light on the cool white snow. High-end CGI VFX, smooth camera movement, 8k resolution.