I want to make videos reviewing Masterclass, how much can I reveal without getting hit with copyright etc. claims?

I have an all-access membership that expires soon.
I want to make the most of it by making short reviews / overviews of selected classes.
How much am I allowed to reveal without getting hit with copyright claims?

I will show short screenshots of things in the members only areas.
Is it revealing too much if I give a summary of the material inside?

Thanks a million!

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