Create 10 minutes AI Avatar Story telling video

I have a ten-minute mystery script that I want brought to life by an AI avatar delivering the story on screen. Between the spoken segments, I need engaging motion-graphics sequences that shift the background and atmosphere to match each plot twist, heightening tension without relying on extra text or character movement.

Here’s what I’d like from you:
• Produce or source a realistic AI avatar that can speak my supplied narration fluently in English, with natural lip-sync and subtle facial expressions.
• Edit the full piece into a smooth 10-minute video, alternating the avatar on screen with motion-graphic interludes that visually change the setting—think lighting shifts, environmental textures, or abstract patterns that hint at hidden clues.
• Deliver the final video in 1920×1080 MP4 along with the project files (After Effects, Premiere, or comparable) so I can make future tweaks if needed.

For acceptance, the background transitions must feel purposeful to each story beat, audio must be perfectly in sync, and the overall pacing should keep viewers immersed from start to finish.