Gonna repeat here what I already told you for visibility :)
Intro : 0:14 chord voicing to be changed mostly look at what the cello is playing
0:53 something weird is happening with the celesta/bell mixed with the chords its a little off
0:58 chord with strings on top voicing is also a little weird it seems like a suspended chord that should technically put us in some confusion states but I don,t think that was intended because the next chord is a bit out of nowhere
1:14 to end: Good smooth transition. I like the trills its a nice change of space, you finally put some bass but a little too late imo
Mixing : If you listen to the overall piece, everything is mostly staying on mid, high-mid range all the time don't be scared to pan some instruments doesn't have to be too much. Most of the melody notes are also playing at around the same range all the time which is really closed up, you can open your arrangement and use different instruments to continue your melody to go up and down using their different range. Your main melody can probably have some EQ work, cut off the annoying frequency.
For the theme its pretty much nailed it sounds like I imagine what the picture would look like.
Some low-end frequencies somewhere at some point would be nice it could be a cello double with a doublebass just to give the chords some root note at some point since most of your chords are inversion witouth a root note, it would make a big difference to have a root at least somewhere, its okay to have inversion but to have something to get a grip its easier with a root note that is much more present.