I played it and i thought it was very good.
I have a few suggestions
1. when I hit the ball uphill and it would stop and start to roll backwards it allowed me to hit the ball for that split second and I was able to repeatedly tap the ball up the hill one tap after the other. perhaps a 1/2 second delay before allowing the player to hit the ball after it has stopped would fix this.
2. when I set the power of the hit of the ball there is no way to not hit the ball. For example I had the ball right next to the hole but accidently held the button too long and too much power. So I continued to hold the button hoping that after it reached maximum it would drop back down. But it did not and I had to hit the ball full force. So my suggestion is to allow the power of the ball to be reduced after it reaches maximum power.
3. I don’t think the maximum power is strong enough. I feel like maximum power should send the ball flying and rapidly bounce from wall to wall. a lot of the shots felt imposable to get hole in one because maximum power was not strong enough.
there are my suggestions. I hope this helps. I really enjoyed your game and I even got out my 3d glasses
good luck to you.