The project has taken so much focus that I haven't had the time nor skill to heavily improve the website's CSS/aesthetics. Or if you mean just the content, any suggestions for what I could consider adding now (besides the existent timeline posts)? I'd love for the site to not feel 'empty'!
I think one approach to make the website "fuller" would be extract tiny 3-4 second gifs from the video and show them alongside text to immediately surface specific features with minimal interaction - that should be enough to whet people's appetite to make them jump to the video.