Nice and mellow! The clarinet really needs some expression (either recorded with a keyboard's expression wheel or hand-written in Cubase/etc) data though, woodwind with a flat, even tone sounds incredibly synthy. The rest of the orchestra also feels a bit unnatural, some randomness in velocity values goes a long way to make it live, though the best thing is recording the parts with a MIDI keyboard if you ask me.
The panning feels a bit odd, especially with regards to the strings, it almost feels like the same sections come from different sections at different times, and the stereo image feels a bit wide and chaotic. I'd recommend trying out a more traditional seating plan (L - R: vln 1, vln 2, vla, vlc, cb) and going from there, perhaps it won't work with your goals but at least you've tried it! Otherwise the mix and production feels quite nice. I like your reverb!
The re-orchestration of the melody with strings provides a really nice variation! Overall though, the track gets highly repetitive, and a lot of the segment goes on for quite a while without something to really keep the listeners attention. At 03:38 for example., one would perhaps expect something like a second theme, related to the first theme. Hearing the same theme, especially with the melody again carried by strings (albeit with some extra "fills" from the rest of the orchestra?), is a bit dull.
At 04:40, the piano, and later the flute, provides some much welcome instrumental variation, but some thematic variation would really lift the track.
Just some thoughts that I hope you think are constructive, still a good job with the track!