I really like the saxophone. It really gives the song feeling.
The only real problem I have with the song is at 0:32 where the theme suddenly changes with no transition. I feel like making that part fade in instead of it "popping out at you" would suit the song more.
I also like how the song has different themes, but you should stick to 1 - 3 themes in the song or else it feels messy.
I would give this song a solid 4/5 stars. Keep up the good work!