Horns are very poor from D on. Cornet does well, but is badly supported by band. Allegro giusto is very moderate. Band is evidently very young at contesting. I don't think you could have done it worse if you had tried to.
Trombone sounds very nervous, everthing is too stiff and formal, no life in it.
Euphonium cadenza very nicely done. I suppose he thought it did not matter much, he came on later. I compliment you. Cornet cadenza a good show. Allegro too slow.