The vocal aspects in the 3rd track were really cool and I like how the tone shifted from the first 2 tracks in the second 2.
I think the final song might have been a little long. The vocals were nice, as was the guitar, but sometimes it felt like it could move onto the next section a tad faster. That part starting after 4 and a half minutes though was really nice and reminded me of pikmin music when the day was coming to a close and it became a softer lullaby style version of the song.