This game's crazy good in all aspects. There is something unsettling about the creepy lore mixed in with the pastel colors and you absolutely nailed the horror you were going for.
As for the puzzles, what is the intended way to stack them? Is it possible to make the tower completely stable? For the later levels I just nudged the top objects around and hoped that they would somehow land in just the right to survive the timer. I made it to level 20 and got overwhelmed but given you barely made the deadline I think that's understandable. I also admit that it took me a while to figure out that you could zoom out, so I spent a couple minutes being confused at the level with the huge dude.
Also I totally got rickrolled the DLC was cool. All in all, this is excellent and great job!