Really liked this! Photographs and associated memories seems to be a topic I find myself thinking on a lot, so I enjoyed how that was handled and talked about in this. The time of day puzzles and effects were probably my favourite part.
I'd agree that the "mug-zone" was a bit confusing in parts but I made it through. The rest of the puzzles felt very intuitive though, and the sounds/music in general I think added a lot!