A very good and effective song in my opinion.
Maybe a little long to start - actually i was a bit afraid listening the first time to the beginning, cause it was really repetitive, even if nicely constructed and agreable to hear, and that's a problem with hip-hop song, that when you don't have lyrics on it, it gets easily boring - but finally it went varied, while still staying in a good and homogeneous continuity.
You created a nice environment that we could handily associate to images, which is a good thing for me, I like "talking" melodies. And the clear sharp drums are contrasting with the softness of the piano and the violin-cello in a pretty good way. It's an ambitious creation you presented, with classical instruments used in a very modern way (ok, I know, it's not particularly original, but everyone can't make something correct with it).
So overall, I think it's quite a success, and even if we can identify 2 themes that are mostly used in the entire song and repeated a lot (the first one with chords, the second with piano), it's not that disturbing cause that's finally rather an ambient song. And the effects and transitions are well employed to spice it up.
That's a good job, even if I'm not totally sensible to the melodies, but that's just personnal. 9 and 5