You're welcome(: And to be honest, I haven't seen your other pieces yet. When I have the time, I'll check them out. I believe you when you say you improved over time:)
I haven't heard the original; maybe you can send me a YouTube video of it for a quick listen. However, I agree with your statement on the chromatic harmonies and moving lines: they add a lot of texture and color to your arrangement. The unresolved 9-8 is especially genius too.
As for making your piece stronger, I consider your ending dynamic edits a nice move. In my opinion, the transition of ff - p is a bit sudden, and the new mp - p has a feeling of calm and peace. For the instrumentation change, I suggest making the new extra violin line a melody-harmony combo like you mentioned. I feel doubling the melody would be too much and will overpower the 2nd violin harmony. Maybe you can upload the new version with the extra violin, and let's see how it goes.
Never heard of this software, but sounds really interesting and will take a look at it. Really smart use of PDF manipulation;)