Hi, beautiful and interesting. I love the exposition, every instrumente has its own work, the counterpoint seems to be born naturally.
The FIRST change to the "dance" part m. 38 sound a bit odd to me, coming from a thicker and dramatic section. Very smart those previous glissandi with a "comic" effect that lead to the happier "dance" part. The second time I hear this is not so unnatural, once learned. The development of this part is briliant, only some spots are a less clear, in my opinion: m. 55 - 56, ... probably because there are too issues to have in the ear: 3 agains 2 rhythm, trill, staccatto...
Nice work anyway. These are only minor impressions of mine. Overall, there is lot of work here.
Interesting tonality, not often seen, particularly in orchestral sets (where some sections are better written in other tonalities, enharmonic following transpositions). But some works comes to my mind in this tonality: Scriabin piano sonata, nº 2, Liszt La Campanella, Shostakovich string quartett nº 8 (movement II).