You've been using Unity for one week??? You're either a prodigy or you've got lots of programming experience under your belt. Probably the former though ;)
This is a really fun game. I love word games. And the story with voiceover is a welcome piece of fluff that you rarely see in jams. A lot of the puzzles, especially in the early stages, feel almost too easy with just requiring one pieces to move. And even then, there are few real brain burners until maybe some of the last stage puzzles. I personally would play a whole game of this with tough puzzles. However, I'm guessing you made this for a young person in your life to play as well as us jammers. As a 'kids' game, I can see this being a huge success.
Well done, and congrats on making this in just a week!