That was a really well made physics puzzler! The level design was really clever, though the timer on some were very unforgiving. The center lock seemed impossible to get unless you start moving the lock the exact moment you reset.
Making the timer less prominent and the puzzle itself as big as possible would have helped a lot. It was quite hard to see them at the default size, which added some kind of unfair challenge. It might be an extension of the same but it was also pretty hard to figure out where the ball was on the first try of a level, so maybe a bit more contrast or an initial outline/ping graphic to highlight it would help.
Still, I did play through all five levels and had fun doing it! I'm sure nothing bad will happen now that the grimore is unlocked. :D