Thanks for the detailed feedback! I'll have to see if I can adjust the font. I know custom fonts are supported by the engine but they may be size-restricted. That's a great point on sentences being broken up. I've been trying to limit the number of boxes as much as possible but if it means breaking up a sentence, it may be better to separate into its own box. I'm pretty sure the dialogue box is limited to where it is though so moving it around may not be possible without modifying the engine.
I really like the idea of breaking up the tutorial more though. I think that would be a good way to break up the long text blocks. Maybe the first area should require you to go to the market price area before letting you out so that I can ensure you see or have the option to see the tutorial without overloading the player at once. For the colors, I am heavily restricted on them a certain degree. For original GameBoy, it is using all the colors available. There is an option to make it playable for GB and GameBoy Color which would allow me to use the engine to recolor a couple of things so I am planning to do that for the final version. This would have the GameBoy run it with just those colors but if it's played in web/GB Color then it would look better, just haven't had a chance to get to that since I have been working on the mechanics/maps first.
I really appreciate the feedback on the music too. It's the first time I've made music so I've definitely been struggling with trying to make it not too repetitive but also making the transitions less chaotic. Definitely going to have to keep working on that and I should focus on making the music more relaxed. You're absolutely right that a chill soundtrack fits best.