Hello @Luis Hernández!
Having just listened to your orchestration in comparison to the original piano work, I must say that the brass orchestration perfectly matches the character of the “Hunting Song.” The piano version is also beautiful, but it doesn't convey the image of a forest where hunters play before or after the hunt as strongly—perhaps this was also because the recording I heard was at a much faster tempo, which would have been uncomfortable for horns, trumpets, and trombones.
In the semiquaver runs, the french horns sound somewhat to „soft“ what might not be the case in a live recording (while the trumpets retain their typical brass timbre), but despite such nitpicks concerning the realism of the software reproduction, the entire piece sounds well balanced and there is nothing „rattling“ (that’s what I call it whenever there is something that had to be improved according to the listening impression).
A beautiful, authentic orchestration of a classical piece that captivates with its very own character!