It started off pretty, and it was all going okay until the trumpet came in. It wasn't even just the melody, the instrument/VST you used itself sounds terrible. It just grinds against my eardrums. Sorry to say, but it hurts my head.
The piece has potential, scrap the trumpet, get a new VST or something, replace it with a new instrument, doesn't matter. As long as that trumpet is out of the song.
I like the overall effect. Keep tweakin' it. The piece has potential. I'd suggest carrying the piano further into the piece or bringing in strings or trumpet earlier - there doesn't feel to be a connection to the two parts otherwise