Very impressive.
I found this piece particularly inspiring. The piano in particular was very elegantly done and the strings were well implemented. The drums fitted the piece perfectly.
The only reason I am not giving it a 10 is that I think the guitar part at the end is a bit cliche and could have been done better. To elaborate, bits of the guitar seemed off beat (3:40). Also, the ending note seemed slightly off (only my opinion of course) and I think it should be cut off a note before.
Criticisms aside, I congratulate you on such a successful piece and hope you are not serious about it being your 'Final Piece'.
Good luck with music in the future, 100'