Love the atmosphere of the demo and I'm intrigued to see more of it!
Could have been due to my impatience, but I found it slightly frustrating to search for the interactable objects in the second half of the demo. Searching in a three-dimensional space if you are unaware of where to look made it a bit difficult - and it took me a few minutes to realise that the coloured light marked the location of the interactable objects.