So, if you've ever seen anything that looks like this, but is also slowly spinning, the spinning isn't just to look cool. The spinning, even very slow and gentle, can help give a sense of the 3D depth of the space. Even just fractions of a degree/sec can be very helpful. I recommend trying to toss in some slow constant rotational motion and see if it helps get a sense of the space. At least based on my browser, you've got the performance for it to look pretty decent.
Edit: Klunky hack you can pop in the URL bar to make it go zoom:
javascript:void(camYawIncr=.001,f=window.requestAnimationFrame,window.requestAnimationFrame=function(a, b){f(a, b); camYaw+=camYawIncr})
Once you run that, screw with camYawIncr directly, rather than re-running that. Clicking a particular element causes jiggling as the klunky hack fights with the code tracking the element.You may need something other than .001, depending on what frame rate you're getting.
(Edit edit: There's something to be said for this whole "web" thing sometimes. It's neat that we can hack on code like this....)