This was cool!
I have only two criticisms. (I played on a really bad laptop, though, so maybe my low framerate made things more difficult than they had to be.)
First, the puzzle of laying out the plank to jump to the rock was a little cumbersome. I think it would have been better if the plank just clicked into place. Second, it took a bit too long to go from one island to another. Maybe I could've been missing something, though.
Overall though, I think this is a nice game. I really like that the color limit did not stop you from making clear designs. The island was also laid out nicely and felt lived-in despite being small. I also think the method of using notes to navigate the player was clear and intuitive. The voice acting was pleasant too. Great job!