Hey!
Really solid game. I love the pixel art and the smooth movement.
If you want to hear some feedback, here's mine: I think you should make some audio mixing on the game. For example, the birds are very loud, but if I lower the volume then I will not hear the jump sound.
Other than that, I think you really did a great job. Congrats, you did very well!
I would love to have you playing mine too, if you don't mind of course! ^_^