Hi! Recently had a couple people try this, and they really liked it! One of them noticed that the color of the title of the first puzzle wasn't blue, and thought it might've been some sort of hint; totally missed this when playing through this myself, which was quite funny...
Viewing post in Hints and Bug Reports [avoid major spoilers]
Extremely minor nitpick with the new version (I'm planning to run it with other people, this won't stop me though ;p): there's two Ds in puzzle 12 that are interchangeable. I don't remember this happening anywhere else in the puzzles, and it's not like any rule is against that, but if that matters to you, it's there.