Sounds good, and no problem.
The other part is the "in reality" rather than the "in legality" side of things...
in practice DO's and DON'Ts:
- don't post cutscenes/cinamatics/trailers (especially in their entirety)
- do follow fair use (educational or review)
- don't post in game music if you think it isn't publisher's original works
- If research shows a publisher active takes action against youtube vids, don't touch it
- if you follow the above, you will generally be fine monetizing content despite the legal ambiguity.