Played through it twice; Did my best and got everything right first try in the first play and checked out the wrong answers while getting all the hints for the second.
Cute designs, fun premise, and the characters are charming.
You also did a good job not giving any hints with how the questions were phrased and how deep you go into wrong answers before being told your initial assumptions were wrong. My only real complaint is that there isn't more content.
It's a bit of a shame you miss so much fun character dialogue if you get the right answer immediately. But I guess that's the curse of detective games.
Hints would be improved if the dadtective gave them in-character as dialogue.
Maybe have the "skip" button look a little more different from the hint button. Maybe a different color of text? I wasn't looking too closely at it and skipped ahead before I meant to, thinking I'd get another hint.
There's a few spelling and grammar errors here and there, but nothing major.
Right-clicking takes you back when zooming in on things in the diorama but not when answering questions. Bit weird.
Holy crap the first hint of the second question blew my mind. Staring you in the face right from the very start.
TLDR I love this and I want more.