Thank you.
You did nothing wrong; the glitch of the animation it is one last bug remaining to the state machine and colliders. I will address it when I redesign this system.
The falling damage is a thing! At the moment it is a constant number but will turn proportional to the falling height. The ability to climb everywhere and hang and walk while hanging, will be reduced to some parts of the maze and be explained from sprites (ladders, grips). The jump is... yeah, realistic :-) Maybe too realistic, but anyway!
It is a little boring indeed so more content will come later, which will include enemies and traps (no puzzles for this level though; the maze is enough on its own ;-)).