All the textures here are, and I mean this in every sense of the word, epic. The underwater-sounding sounds like that bass and drums mixed with the airy flute and vocals in Undersea Exploration are just so heavenly. Some of the elements in the mix feel a bit overpowering, like the low filtered saw wave(?) taking up a lot of space in the mix so some levelling could help there, but all the ideas in the track are incredibly solid and paint a great picture.
I think my thoughts are mostly the same for Venture Forth, though the mix sounds a lot more balanced here. The composition is really great, it feels huge and emotionally resonating with incredibly catchy melodic lines. Personally I think some more automation on volumes to help each section swell into each other could push that incredibly driving composition even further, but that doesn't take away at all from what's here. Really cool submission! Great work :)