Even though it is simple, I love your use of the theme musically by having the main motif be hidden among other parts! Clever use of the theme in the music is what I like to see!
I guess my my advice would be to maybe emphasize the melody part in the last track more? Like give it slightly more attack. it was really pretty but a tad difficult to hear over the louder string instrument.
I of course don't know if that's the vibe you were going for so IDK
