The art is very clean and clear, no confusion on what to pay attention to.
The climb function is interesting, but it feels a little to slow. It depends a little how the rest of the game will be, if theres a lot of checkpoints and you replay each part a lot, slow climbing might be annoying. But if its a more relaxed difficulty level, its okay to climb slow over the level once.
I also like how theres no walls at the side, looks clean and a mix up of what you normally see.
It will be interesting to see more level added, and how the exploration and backtrack will work. Good luck!