Concerning the music I am not qualified to comment because I am neither an expert in operas nor in orchestration. With respect to the future videos, please allow me make two suggestions:
It is a good idea to take the time to be brief. This requires writing down a script summarizing just the main points and reading from this script.
To avoid that the score is downscaled to an unreadable size, you should, for a video, create a score with fewer staves per grand staff (accolade), that is: to merge different parts in one stave.
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