Nicely done! Was fairly easy in terms of puzzles but that's understandable considering the jam timeline. Might be worth looking into preloading particle resources when the game first loads to reduce lag at runtime.
I guess it depends on the type of game loop you're aiming for, but I think being able to move the camera before launching the ball could allow you to plan ahead. But if you were going for a more exploratory/reactive experience then I'd say it's fine as is.
I didn't realize you could interact with objects while the ball was moving at first but maybe I didn't read the instructions well enough.
I don't know about having more than one way to solve some of the puzzles (especially when one path is alot easier), it kinda makes it feel pointless for the other path to exist. But again if the exploration type of game loop is what you're going for then might not be so bad, maybe even lean into it more so it's not immediately obvious that one route is the better route.
I had fun though, great job!