"Dark Ball" : My first game as a developer level "Beginner" :D """"FREE""""

Hey guys , I am Ramy from Egypt, 19 years old . My friend told me that here I can get best response from developers/gamers if I made a game on android , so here is my first game ever on google play https://play.google.com/store/apps/d...D.BallControll

game description :
A simple game in which you try to prevent a bouncing ball from falling down using a paddle.
2 modes available:

EXPERT:the rule is simple , ball goes offscreen, you LOSE !.

FANTASY:play through +20 levels , the more you survive , the more it gets harder!.

Please tell me if it is good or bad and how should I improve it. Thanks .