Very interesting game! It got progressively more difficult and I like how you slowly introduce more mechanics to the game. The cow sprite is a lot bigger than the blocks so I felt like I fell down the blocks even if I thought I landed perfectly on them. Other than that the game was very enjoyable and I liked the music :D
I don't know if you've heard of Game Development World Championship before (gdwc2019) but it's a competition for indie game developers where they can submit their games and it's free! It's great if you want some more visibility for the game and it only takes a couple of minutes to join :)