Where should I get my GDD reviewed?

I am an Animation student, trying out game design for the first time. After a couple of courses and tutorials, I have come up with a GDD for a mobile game which I am trying to publish on PlayStore. It is still in pre-production.

But since I am new to game design and do not really have connections who can help me with reviews, I am not sure if it is good to go or needs something more. And since its a long document (60 pgs), I am doubtful about if Game designers I hit up on instagram or Linkedin would take the time to read it.

Do you guys know of websites or communities where GDDs are reviewed by Game designers? Would really appreciate any help, thanks! :)