OK, little help?
In Level 9 (though I can't help but think I missed something in Level 8). The 'left eye' room, I'm sure there's something there, but nothing I tried works. I'm guessing the red ring is in there.
Then there's the section that reminds of Level 7. Can't figure out how to get to the Level 8 part (where, I assume, I will find the silver arrows).
EDIT: figured out the 'left eye' room. Now to figure out the other part.