There were some interesting discussions of it over at
***AdventureGamers forum***. They had a couple of threads about it, one of which is currently 65 pages long, discussing things like parallels between the two worlds, how they might be connected, etc. There's probably more to the game than what you can see from the screenshots. But apparently it is not very challenging puzzlewise -- at least not in Part 1.
I won't be playing the Steam version, but I might buy it if the entire game shows up on GOG.