If you still haven’t heard back, it’s usually for 1 of 2 reasons – you don’t have enough public watch hours, or your channel requires additional, in-depth reviews since the content is close to not meeting our policies. More on these 2 topics here: https://yt.be/help/YPP-review
My previous videos did not have narration, only video tutorials without narration, but I have changed everything and have fulfilled the public broadcast hours