Nice little piece.
I don't think that the high F in the bassoon is all that high. I think that any player who is not a beginner student should have no problem.
The high Db in the oboe is a little more problematic. Going above high C is difficult for various reasons and requires a pretty good player.
For myself I think the 6/8 part would be better if it were in 3/4. It would give the music, with very little change, a, to me, more flowing, swingy, feel.