"Deep Water Currents" begins with a nice staccoto string melody and shaker hits, works well to create intrigue. Legato strings at 0:45 broadcast a transition to another section. Swell and bell at 1:06 have a nice impact. I like the woodwind, very haunting. Nice galloping rhythm in the second half of the song.
"Welcome to My (Underwater) World" very beautiful melodies and nice use of counterpoint. My only concern is the water sound effect is loud enough to compete with the instruments for the listener's attention. IMO a good place to decrescendo the water would've been at 0:06 when the melody comes in.