The puzzles in this game flow really well, and visuals are fantastic! There are no unreasonable leaps of logic if all necessary components have been found. It's reassuring to know that if I don't have a specific way to use something it's because I missed a piece, not because I need to start making wild guesses.
EDIT: I realized what I missed as soon as I posted this. It's still really intuitive!
I'm stumped at the moment and would appreciate a hint (NOT THE SOLUTION) if anyone can help. It's mostly an issue of which pieces of information go together. Right now I'm in the tower and have done most of the lower 2 sections. I have the mirror message from inside the fish tank, but am not sure what to pair it with. I need to find a key for the symbols on the panel beneath the fish tank (I get the puzzle) and what in the world to do with the pyramid.
Again, please hints only!