Very polished. I love that you kept the scope limited but made it "a finished game", with a storyline, nice visuals and effects and a soundtrack. From what I've seen, no bugs as well!
As I've said in person, my one gripe with the game is, that it does not make me feel smart for figuring out the signs. Imo, there should be a way to deduce which word needs which symbol. Maybe have a magic book that gives you clues?
Right now it feels either too much like brute-forcing your way through solutions, or too hand-holdy if Ou use the hint system
But I think you have a solid foundation to add more mechanics to.
Great Job!