I guess also, what’s happening in the top right is cool but I think as a user you’re preoccupied on figuring out how to view the other content it’s difficult to appreciate and I imagine that’s where you put a lot of effort
> I'd like the visuals to do most of the talking
If you’re aiming for a more curated experience, it might be worth limiting content that is likely to confuse the user for what the intended experience is meant to be. Many users have preconceived ideas of how some parts of the UI behave & which might get in the way to delivering the experience you’re trying to deliver.
Really, inventing a new navigation UI for what is supposed to be a document, on top of a browser and bypassing its navigation conventions, simply isn’t a good idea.
I think you are close to every effective presentation format, but the cramped space for the text was the biggest friction. The moving visuals, as helpful as they are, also became a little distracting as I was trying to absorb the meaning of the text. You could solve both issues with a toggle to hide or expand the visual.