Cute spritework! My favorite part is the ketchup clip when you fall into spikes. :D Good shit!
From the technical perspective, I'd recommend looking into jump queueing as that'd make the platforming smoother. If you press a jump button right before you hit the ground, it feels better if the jump connects like you've properly waited to hit the ground. It's not a big change, but it would make a big difference in the second level.
Good work!