I really like the jazz vibe on this music. It sounds really good.
There are a few chord errors though. From 1'15" you put a chord of E major while the melody plays an F. You can hear the dissonance. On this whole part, I have the impression that the harmonic progression is C#-A-B and that you have done C#-E-F# keeping the same melody. I let you check if my ears are saying sh*t or not :)
And congratulations for making saxophones sound good. I'm going to steal this VST from you!