Hey had fun playing this.
Art was great and I love the feeling of dragging the blocks into you with string.
The writing was good, I felt Like you could have got away with getting rid of the text in the beginning and explaining it less literally to start the game. Trust your audience to figure it out.
The credits in the beginning were a lot of work that was a bit unnecessary. I think to start a game of your first impressions are quite important. I think putting that at the end would have felt more rewarding.
I think a smart way to "end" the level would have to just have an expensive block limiting you from passing. That you had to finish the other sections before going through.
If I had any mechanical crit, it would be the jump. Check out "Ghost jumping" just add a delay to when you can jump after leaving a platform and it adds 1000000% better feel and control.
Overall great mood and a well put together project. Good job <3