Overall a solid concept that was pretty well executed! The one frustrating bit for me was that shadows occasionally would seemingly appear out of place, such as in the final puzzle where the blinds seemed to cast their shadow across the entire room. I could imagine that the Master liked his privacy while he worked and moved his furniture around before he ascended, but it felt strange in the moment and forced me to spend quite a bit of time repositioning the light.
Besides that and audio being sorely missed, it was a solid experience that seemed to accomplish what it wanted to do. Great job!