Great game! The graphics are brilliant although I can see some major similarities to the flappy bird UI. The ad usage is not overdone which is good and should not put people off playing it.
One problem which could be fixed is the file size. The download was not too big at around 20mb however after installing, it was near 70mb. I would recommend using cocoon.io's Cavas+ webview as it greatly reduces the file size. Most of my apps had a download size of around 30mb when using things such as PhoneGap and Intel XDK but after switching to Cocoon.io my file size stays under 8mb and around 20mb after install.
Apart from that, it's a great game and good luck.