First of all don't take my words as contestant but a listener and admirer of this genre.
This is a beautiful piece of work. Very moving and evolving bit by bit. Really like the strings work and certainly evoke the feelings present in the art. Things that I would have added in this piece to refine it more are firstly percussions that would make it interconnected between the transitions. I would also like to continue with the basses after 0:32 specially after 1:31 for the warmth. Lastly, I think the ending needs to return to the original chord for a sense of completion.
Again, it's a fine piece, really it is! These are just some observations. Don't take them seriously.