Hello sir. I liked your game. I actually had the same idea for a game but I couldn't think of a way to so elegantly create it as you did.
Although there are a few flaws in your game I think.
One is that, this obviously shows a lot of parallels to the board game Guess Who? but there is no way for me to "rule out" someone or mark them down as unlikely. I swear to god I had to keep going back and forth looking at each guy and I would forget if I ruled someone out or not so I had to keep checking the same guys. Part of the addictive nature of games like minesweeper and Guess Who? is marking down the spots you think are correct or incorrect and eventually you are just left with a few options.
The way you did it was just kind of frustrating for me.
And as other people said it was sort of hard to tell from the picture if the guy was "muscular", "plate shaped head" or whatever. Sometimes they wore beards and hats and you couldn't tell at all. I'm assuming you left it this way by design so there is more potentially guilty Winkles but it's kind of frustrating when you cant rule out guys, so it just feels overwhelming.