Track 1: what an absolutely wonderful sound world! The glockenspiel runs, harp runs, and swelling strings give it an utterly enchanting sound. I do wish there were more than the four repeated chords the entire time, as this leaves you very boxed in with what you are able to create.
Track 2: Again, this track is beautiful to listen to, but harmonically it is three chords on repeat for the bulk of it-- you change the chords about 2/3rds of the way through for a little while, but changing them even more would benefit this track very nicely! Try transitioning into a new section sooner!
Track 3: this is a lovely tone shift-- cool melody in the low woodwinds, and awesome countermelody in the oboe! Definitely gives me a witch's hut feel.
Track 4: pretty eerie, loved it!
Good job, keep writing :)