Looks good overall, but I feel like I need to make this suggestion: Either the pattern for the dirt needs to be changed, or it needs to fade to black or a darker, solid color the further inland it gets. As it stands, whenever the screen moves, it just looks like a bunch of waving lines and it messes you all up.
Also, I feel like the character should start changing to his falling animation at the peak of his jump, rather than when the velocity downward is high enough.
Also, I feel like the character should start changing to his falling animation at the peak of his jump, rather than when the velocity downward is high enough.