First of all I will show the corrected version of the piece, right here:
It is scored for 1 flute, 2 oboes, 2 clarinets, 2 bassons, 2 high horns in C, 2 trumpets in C, timpani (C,G,D,A), and strings.
The compositiong plays around themes exposed in a sort exposition. The tonal travel is C-->G for the exposition then Cm-->Abm-->A-->F-->Bb-->(Gm-->Bbm-->C#m-->Em)x2 and finally the reexposition in C major.
The movement is in sonata form, but is has some surprises.
If you have any feedback please leave a comment.
Version with mistakes: