I loved the trees in the background. Those were really nice trees. and the rest of the artwork was also fine, as well as the audio.
As for the rest... it was a solid platformer and since I played dozens of them it didn't tickle me in the right place anymore. I didn't have the patience to wait for moving platforms or enemies being in the right place. You should have added some kind hook to the game that would have make it stood out.
Oh and please add a skip option to text . Nobody likes to read in action oriented games.