What you have so far is really solid!
Thanks for the compliment!

- Trill in m4 RH
I actually forgot I was going to add that before submitting the first time. Whoops.
It's now been added. I've also reworked the couple previous measures a bit. However, now that it's more complex, I'm not 100% certain of the end result. Definitely take a look and give me feedback on these measures.
- The strings in m11-12 RH
Added. Definitely adds quite a bit and was a good suggestion.

- Harmonies and/or countermelody under the melody in m13-20 RH
This one was... quite tricky. Here are my notes about the harmony, as I hear it.
In m13, it starts really high (on a Bb5), out of the reach of play (unless you are Rachmaninoff). Since the harmony only plays a staccato G5 after that, I've struck the harmony from m13 and introduce it in m14.
In m15, I've added a descending harmony starting on Db which I'm pretty sure I hear. However, descending starting on a G5 also sounds good too.
Finally, the harmony/countermelody in m17 starts on a G4, again out of reach (unless you are Rachmaninoff). This time, I've just omitted that note and left the remaining notes the same, leaving a quarter rest in its place.
Since this was kind of a challenge, if you hear something different than what I've written, or could work in the notes I've omitted, please let me know!
- They're not necessarily there in the original but I think adding harmonies (i.e. dyads instead of single notes) under m29-36 RH would make it feel a lot fuller (either that or find a way to fit the countermelody under it)
*Quick Google search of what a "dyad" is.* Ah, okay. I get where you are coming from. The piece seems to be building over those measures and adding additional notes would help it build. Gotcha. I've considered the countermelody, but it would be really challenging to transcribe, let alone play. As such, I've simply just added what would be appropriate for the underlying chord pattern. The only note lacking a dyad is m32 b3.5 as I feel like this note doesn't need one, however, an E can be added underneath it, but I just find it to be a bit much.
- Dyads instead of single notes in m37-44 RH
*Quick Google search to make sure that I
actually know what a "dyad" is.* Okay, pretty sure its the same thing. Since the chord progression is Gm-A-Ab-Gm, I've simply just added the note in the chord that is right beneath the original note. However, in the original, this falling notes are kind of quiet whilst the bass takes center stage with its cellos (I think those are cellos...). Should I add a reduction in dynamic here? Either for the system as a whole or just the right hand? Or is leaving the dynamic alone just fine?
Other minor things for now:
- I hear the top notes in m1 RH as Bb-A-Bb.
- Minor, but for m9 RH, I think you could add a slur on beat 3 that ends on the staccato'd note for visual clarity.
- I wouldn't tie the m27 dotted half note over to m28, because right now it's not visually clear whether the note should be held or re-articulated at the start of m28.
I don't consider any of these "minor things", I agree with all the suggestions!
- The first measure was throwing me for a loop, so I'm glad you heard that. I've fixed it, unless you had a different octave in mind.
- I added the slur and definitely find it appropriate, especially after listening to the piece again.
- As for the tie, I was wondering about that, but I was unsure. I figured it'd get called out if incorrect, and it did, so it's fixed now.
Alright, I think that's everything addressed. I've updated the file in the Dropbox, so feel free to give it another gander! Please let me know of any more fixes that I need to implement or if you disagree with any of my changes!