Hey there! Here's my feedback for the music:
Lay of the Land - I really like the melody in the low strings that comes in ~1:30 or so, to me it feels very fantasy-esque like the protagonists are looking ahead to a grand adventure. The key change at about the halfway mark is also a nice change. My main feedback here is that the piano hits in the higher register, as well as the high strings at ~3:00, are quite sharp to my ears. Maybe consider lowering their note velocity or making some small EQ adjustments here.
The Great Migration - Nice use of the stereo mix here. All the instruments sit well together and have a nice clarity to them. I'm a fan of how chaotic the rhythm is in this track and how hard it is at times to find the downbeat.
Water Flows - There's a nice vibe here between the bells and wind chimes, but IMO it somewhat overwhelms the other melodic instruments. The flute (I think?) on the right side of the mix feels a little harsh at times to my ears. I think it could've also benefited from a little bit of quantizing as well to better feel in rhythm with the rest of the ensemble.
Wind Blows - While I like the idea you had for this track, I'm not sure I ca hear how this relates to wind on a first impression. To my ears, this feels like it could be heard in a small village or at a religious gathering of some kind. Probably has something to do with the instrumentation here.
Also, a bit nitpicky, but I think I would've preferred a gradual decay in volume instead of a cutoff that was present for the last couple of tracks.
Aside from that, I enjoyed reading through the itch page along with the couple of pages that were provided. I personally liked reading the text about the fish species quite a lot. The artwork as a whole, and especially the choices in color, is also well executed.
Thanks for sharing what you've made, and keep up the good work :)