How should I structure and improve my content?

I recently settled on a firm style of content for my channel, which pretty much boils down to "Playing indie games and then presenting those playthoughs like a movie/TV show", with title cards, chapter titles, and objective boxes.

My videos are fairly basic right now, so I figured I might ask for a bit of advice on refining the style, and potentially improving pacing.

One specific question I have is if I should do commentary or no-commentary playthroughs.