Amazing piece and I love the music, but in my Chrome browser the layering seems to be broken for me. I just get what I imagine is the background image as the foreground color, and I can't really see things until they get higher up than the horizon. There's none of the layering like I see when I run the project in Firefox.
Hmm... if you take a look at the top left of the screen, you should read "SLUMS 1.0 web gl" but it seems your browser use the 2d canvas renderer, try updating chrome and to force "hardware acceleration" on the settings. You can test if your browser is Web gl compatible here : https://get.webgl.org/