The Adventure Prelude: This sets the tone for a sea-faring adventure very nicely! I like the use of the flute and the french horn melodies in particular! They make this sound like something straight out of Legend of Zelda Wind Waker! The section at 1:11 gives a nice alternative section that feels a little more unsure as if foreshadowing the conflict in your game. I like the ending sound effects with the gentle wave noises. I agree that this definitely is a perfect introduction to your OST!
Time Versus Time: I really like the choral elements of this piece. It gives a sense of determination as it chugs forward. The viola/cello melody that emerges in the second half is very beautiful and gives a sense of optimism in the midst of the dramatic sequences.
The Sea Awaits: I’ve noticed that you do a good job consistently committing to a variation of A and B (and sometimes C) sections which help give variation to your tracks and make them pleasant to listen to on repeat for long periods of time. I’m impressed how you have such a wide variety of musical ideas within each track.
Unfree: You can definitely hear the confidence early in the song. I like how you musically conveyed a sense of doubt with the change in progression to one that is more minor. Then when the music returns to the A section, there is an added element of electronic sound which is a really cool way to introduce new sounds you are going to use in future tracks.
Storm: The electronic elements are new to the soundtrack so far and convey a sense of other-ness which is great for the type of conflict a storm brings. This song serves as a really cool musical segway to the next one.
Next Adventure: Great job of bringing your original ideas into a new style to convey the same adventurous spirit of the protagonist, but now just in a new setting. I really like the rhythm you’ve created!
Battle for the Last Orb: This is a really epic battle introduction theme. It gives a sense of something big looming in the near future and makes me feel suspense. It would have been cool to hear the tempo pick up for the actual battle!
Game Over: Very creative of you to include a game over stinger! This fits the style and feel of your OST while even including a clock ticking effect to make it a perfect stinger to play at the loss of your last life.
Overall: You have a creative and well-developed take on the theme and your use of leitmotif throughout stands out and makes your OST feel very cohesive. While your music alone does not necessarily make me think of time as a theme, the story you have created to accompany the music makes perfect sense why you chose each element of your music and this would be a really fun game to play! Great work and thank you for sharing!