As a fellow developer, I say this with empathy but this game feels like it needed more time (as do we all, haha).
I had almost finished when I somehow got the bird, and noticing the jump compared to the alpaca(?) made me appreciate the thought put into how each character plays differently, and from there I then saw how the level design attempted to utilise the shapes and movement of each character.
Congratulations on submitting a playable game though!