Nice little puzzle ! I've seen similar concept during that jam, but your twist of having transparent dice to be able to see the other faces is genius ! It makes the gameplay really clear and intuitive, while making the visuals cute (that smiley face for the 2-face is such a nice touch <3). It is the cleanest implementation of that concept I've seen so far, and WOW, that's a lot of levels for a 50h levels jam.
Congrats !