I think it's perfect for a mobile game.
The target of this kind of game is to spread it to many people as possible. Making the game with heavy visuals reduce the number of people that can play it due to hardware performance (not all people have a good mobile, like me, for example).
Another target is children. A good choice is to make the visuals attractive and fun for them and, obviously, simple and easy to learn as much as possible.
I can't try it cause my mobile has memory space problems (too old), but I think it's cool!.