Well first of all and it would have been nice if you provided a particella for the piano at least hehe, but anyway I read it and saw nothing impossible. That said, there are parts that seem to be technically demanding but not too much.
Since I was focused on the piano I didn't pay enough attention to the whole work to tell you in detail, but overall I like it. There's room for improvement, that's for sure, it almost always is. Regarding the scoring, I presume you're using musescore or something similar, because musescore sometimes messes up silences, subdividing them when there's no need to like in bars 7-8, and I'm 99% sure it's musescore because of the way pedals are written in bar 27 (they overlap, yes, it's a musescore bug or something...Lol if you're using another software I guess there are common deficiencies across music notation software).
I like the ending of it as well as some rhythmical parts that you have here and there, I like the timpani. The beginning of the song is very explosive, and I like it too, but some parts that you do using some kind of question-answer structure don't convince me (see bars 9-14 and then 14 to the piano solo for reference). Regarding the piano solo part, it's alright, but I suppose you would want it to shine a lil' more? I dunno, it's ultimately on your hand. The brass is powerful. Another thing I might be wrong about is the seeming lack of structure though some sound feelings do repeat over the piece (please correct me if I'm wrong, I would like to know if you analysed the piece yourself or you made it with a certain structure in mind or not) and it is true that the first passage you find in the beginning repeats.
Well I don't know what else can I say that would serve you of anything so I'll just stop here. Thank you for sharing your work, it is always pleasant to listen to other people's compositions :B.
Kind regards,
Daniel–Ømicrón.