I listened to the tracks in the order you suggested and I like the movement each piece has. They did a good job of portraying each season through Tino's story. I also like the melodies you made with the violins and various woodwinds over the piano. The only suggestions I would make writing wise is that you can support your melody lines by adding color and expression with chords from backing strings like violas and cellos for your violin lines and add resonance to your woodwind lines with bassoons and a brass section, But only if you wanted. There's writing techniques called "voice leading" and "chorale style" writing that help blend your melodies to your supporting voices and fill the spaces between them to create a fuller sound. None of this is necessary though and your music really told a story! Good job!