very fun compositions! love the big orchestra sound you've got going on. the 3 to 2 polyrhythm in "Century Peaks" was a good way to integrate the theme, as well as the classic 6/8 pirate sound in "Immortal Seas"!
if i may offer some advice, i did notice that your compositions felt a bit muddy at times, and i think it's because your melodies often use notes that are not in the key everything else is in. those notes tend to work best as transitional notes, and it's usually best not to stay on them too long.
that being said, these were still very fun to listen to! i can tell that a lot of thought has been put into these, and you should be proud of your work. well done :)))