Dig the vibe man! the flute and trumpet sound really great together like that! If I was to suggest anything (unfortunately it has to do with the bass heh), It feels like the bass is sitting a bit out of the mix, which kinda takes a bit out of the theme. Not sure if "ducking" it would be the solution, but a reason you might not be digging your bass lines as much might have to do more with the mixing than the licks themselves.
Would be curious to hear what this would sound like with some lo-fi filter effects. I can see why you'd prefer a more clean mix, but it feels like a stonesthrow away from being something that would sit nicely in one of those chill/study to/etc. mixes.
Just some thoughts. I might be totally wrong (be cool to hear other perspectives on this to), but hope you keep making tunes all the same man!