I think the art style you have chosen is great and the animations are very nicely implemented. Like how you changed the scale of the bird the closer it gets to the snail. And the little touches, like how the bird "leaves" small marks if it hits the sprout. The sense of progression is nice as well, it really fits the theme of the jam.
Also, I noticed it because this is something I also forgot to do, but I think you might have forgotten to loop your music track, as at one point it just stops playing :)
Great job!