This game is awesome!!!!!
The tutorial is a bit difficult and frustrating. I imagine that will put alot of people off.
If you can make the UI a bit more readable and user friendly and make the on boarding process easier and fun to do, this game can maybe attract a great audience. The tutorial you have in place now will make a good challenge mode for advance players to complete. Add some super easy content for casual players to complete and you have a great mobile game here. I'm keeping this on my phone for a bit to play more in my spare time.
I'd like to know how you implemented the multiplayer. Are you on Discord? Maybe we could chat about it sometime.