You almost got there then. Kinda happy that it wasn't too simple. : )
I was constantly shifting between "is it too easy or too hard"...I wanted to add an easy mode with yellow paper notes stuck on the screen as hints but time was running out so I just added a minimum of hints in the game.
I find it really difficult to balance puzzle games as a single dev as you can't really test the difficulty...
Thanks for your feedback as always :)