That's the best way to improve your skills in my opinion. During my early days on YouTube I would face a lot of criticism and feedback and I did realize until I started talking it into consideration that a lot of thesefeedback I was getting helped my content improve. Analytics also helps a lot to because it shows the type of content your audience is enjoying the most and what you should probably start focusing on more

I make it feel authentic by trying to add a bit of my own creative ideas to it to give it my own unique creative touch. Something meaningful that doesn't disrupt the balance/synergy of the artwork but just enough to compliment and add a bit of flavor to it

Usually I start off with an attention grabber, something off the wall that people wouldn't expect and to grab their attention. Maybe start off with a light hearted joke or a meme just to lighten the mood