I know it's unfinished, so my feedback takes this into account.
I wasn't able to complete the first puzzle because whenever I tried to push over the wood block I would glitch past it and get stuck or fly into the air, so I wasn't able to get very far.
I liked the wall climbing aspect which makes full use of the game space, but felt it needed some kind of indicator for when you are able to move across a new level.
The art style looks good and fits the game well.
If you were to carry on with it, I think it could be a fun puzzle game, the whole setup seems good and if the first puzzle is anything to go by, I think you'd be able to able to make quite a few nice puzzles to solve.