Holy... that level was tough.
The red squares above are the size of the hitboxes (or maybe they are smaller and the player is wider than his visuals), the furthest right even protrudes into the platform itself which I painfully learned on the 3rd attempt of trying to go that way.
The jump itself requires perfect placement into the center and then strafing when you're half way down the fall which personally I have no problem with as it gives it a little challenge BUT how am I then meant to get back to the start in 5 seconds afterwards other than to try and naviate back down that only just wide enough tunnel and strafe left. That's a lot of challenge and frustration for level 3!
The hitboxes are definitely punishing and the visuals don't convey that it's meant to be a platformer designed to challenge and frustrate so I'm really not sure if this was a conscious choice or not.
After replaying this level 15 times, I would have liked to mute the background music as it was getting a bit repetitive haha
Its hard for me to give detailed feedback as it went from really easy to 'I cant do this' fast, the character felt good to control.