Not bad for a first try, but it would be so much easier if I could just click those buttons instead. Also, the game crashes with an exception when I press Cancel. It ends the game all right, but not in a nice way. And it would be more honest if you showed a screenshot from the actual game.
Speaking of which: the game would look a lot better with some nice colorful icons like these: https://openclipart.org/user-detail/mondspeer -- I used them in two projects already.