Last puzzle code did not work and your walkthroughs are links to spam . Still gets you A foreffort.

Pretty Good

With the exception of the shape puzzle, all of the puzzles had answers that felt very logical to solve. The shape puzzle felt like it was logical, but there was either a key missing or something I just wasn't getting. The differing sizes and positions of some of the shape signs confused me. It ended up just being easier to "force" my way through that puzzle, trying every combination until I found the right one.

Some music and sound effects would have been nice too. Other than those two things, pretty darn good.

A few points...

It's a simple enough puzzle game, and the intro music is good. However, it would enhance your game to have some low-key music or sound effects during the game itself.