[opti]

very nice voice for documentaries narration… I would suggest you to start hearing (and paying attention) to the narrations of David Attenborough. Where does he makes emphasis? how does he describes things? which words is he stressing? how does he uses the pauses in his reads? the prosody? etc… It’s not a matter of becoming a double that imitates him, but to learn a little big more from what he does. His documentaries are beautiful, so I would suggest that if you can’t concentrate on the voice, minimize the video and just hear him narrating.
Have a great day.