Fine.
You have a good concept running here, Emanuele, however: the game itself is just too slow. I see that already several users complain about the speed the game runs at, and I'm not going to complain, but I'm going to advise you to improve that for future releases. The good concept gives you the rest of your points. The graphics are basic, but that's fine. The point is you delivered your concept properly. Nice work, congratulations on front page. Keep up the good work.