I wanted to have more done than this and I think you may be right the the layout should be improved. If possible I wonder if it would be better if you could go through a whole level instead of one static place, of course it would be more difficult to make but it may end up being more fun. With some improvements on the graphics like having more than a solid color for the ground, combined with a working online high score leaderboard and some additional things might make my game better. Thanks for your feedback it may be really helpful and really appreciate it.
I have already checked out your game and may be rating and commenting on it soon.