Very interesting approach, I liked it very much!
Especially the piano melody at the beginning.
But there is one thing: around 0:50, the piano sounds a little bit out of tune with the violin.
You could work a little bit on the mixing side, like using more reverb on the violin.
Also, try to make the instruments sound more full and natural. Don't be afraid to use layering; for example, using two different plugins on some instruments helps a lot.
Overall, it's a very interesting track!