I tested your a week ago and I was sure that I've commented it but it seems that I haven't, oupsy!
I enjoyed playing your game, I think it is well polished, clear enough, and it reminded me some mobile games I loved in which you have to mix things together to discover new elements. The game have a nice progression, it starts really simple, and become more complex as soon as you begin to unlock a lot of elements.
Good job ! :)