This is pretty great - nails the regal, fantasy sound and the accompanying write up made for some great insight.
Rise and Fall kicks off with what I'd expect from the write-up, however that change of pace and tone just shy of the minute mark was really good. Nice way of playing with emotion and opting for a more evocative piece. Orchestration throughout is really solid, all in all each section is arranged well. Really digging the choir elements that come out later in the track.
Diminished Returns is another solid piece - playing heavily into the choir here with some cool string melodies weaving in and out. I like how you've relegated the horns to the supporting act here, bolstering up the rest of the orchestra by holding key tones and emphasizing the progression. This has a faint kind of pensive, forward-motion vibe to it which I like a lot.
Finally, Bittersweet makes for a nice departure in what we've heard thus far. Definitely more of an air of hopefulness in this piece. Digging the change in lead instrumentation here, opting for the winds instead to carry the melody before shifting back to the choir around the half-way point. Feels so natural and well articulated, do you mind my asking what you're using for the choir? Great job with it, feels authentic!
All in all this made for a solid submission. All three tracks are produced well, fit together and stay in their own lanes. Tight execution on the theme and great arranging as a whole. Great work!