Great job! This one is a lot of fun. I really like the choice of music and how it combines with the bounce sound. I enjoyed when I could start to get the feel for the level and zip though to the challenging part like I'm a speed runner.
Usually pixel art is distracting for me, but I liked yours. The monochrome made it pleasing without being too stimulating
One idea for improvement. If the first level was simpler, it might easier for the player to grasp the mechanics. Maybe I'm a slow learner but I picked it up eventually haha