Nice demo. I noticed some small things you could improve for when you are going to do a real demo. The shader of white houses the first link do not look right on my machine https://imgur.com/uo6ajXj.png It looks a it like z-fighting and a bit like a shader error. the error is on both firefox and chromium, I only get some .drawMode has been removed. errors in the console. The second link took 20 seconds to load and was downloading 10mb, mostly slow images. Maybe you can lazyload those.