45-60s Product Explainer Video

I already have photorealistic 3-D renders of the product idea and a complete script. What I need now is a polished 45–60 second product explainer video that shows what the product is, the problem it solves, and its key features and benefits—much like the samples linked below.

You will handle the full edit: pacing, subtle motion graphics, on-screen text where it helps, royalty-free background music, and most importantly a clear, professional, formal voice-over. I don’t have a voice talent lined up, so please source and direct one who can match the tone of the script.

Reference style and energy:
https://www.youtube.com/watch?v=r8YUIZGQ6ZU
https://www.youtube.com/watch?v=_zaKb0R_yeI
https://www.youtube.com/watch?v=BBZ6WAg4Mbk
https://www.youtube.com/watch?v=Urx8b7jhBXM

Deliverables:
• One HD (1080p or higher) MP4 video, 45–60 seconds
• Separate WAV/AIFF of the final voice-over
• Project file(s) so I can make future tweaks if needed

Acceptance criteria:
• Visual flow matches or exceeds the polish of the reference links
• Voice-over is professionally recorded, clearly enunciated, and synced to the script
• My 3-D renders are showcased cleanly with no loss of quality
• Up to two rounds of minor revisions included

If any additional assets or clarifications are necessary, let me know up front so we can keep the turnaround smooth.