Use Reference 1 as the exact first frame and Reference 2 as the exact final frame. The camera is...

Use Reference 1 as the exact first frame and Reference 2 as the exact final frame. The camera is completely static and locked off for the entire shot. No camera movement, no shake, no pan, no tilt, no zoom, no reframing. The shot begins with the empty doorway exactly as shown in Reference 1. Then the girl runs joyfully into the frame through the doorway, naturally approaching the position and pose shown in Reference 2. Her movement is energetic, playful and spontaneous, with believable childlike running motion. Her dress reacts naturally to her movement, and her long curly hair flows and bounces dynamically behind her from the momentum of running. She is visibly happy and excited, smiling naturally as she enters. Her body gradually turns toward the camera as she reaches the foreground. Finish seamlessly on the exact composition, body position, facial expression and appearance shown in Reference 2. Preserve the room, doorway, architecture, lighting, perspective and colors consistently throughout the transition. Preserve the girl's facial identity, hairstyle, white dress and proportions. Natural motion physics, realistic hair inertia and fabric movement. No morphing, no sudden appearance, no teleporting, no sliding, no changes to the environment.