Congrats on your first finished game! I really liked the squirrel model. Visual suggestion, I think if the islands / trees / ground objects grew larger as the level went on, it would sell the idea of falling more. Very neat!
Yeah, tried adding parallax, but could never get it to look quite right given the time, I think after binging a few tutorials in the past few days I couldve cobbled something like that together. But theres always next time. :D