Hello j_ol,
I also listened to your recordings of the other three ballades and, although I'm not as advanced and exprienced as you, I strongly believe that you have real musicality!
You have worked hard and achieved playing such pieces with expression, phrasing, power, style,...
I have to say that, of your recordings, what I liked most was the one of the 1st Ballade.
As for the 4th Ballade, this is a piece of great difficulty, both technical and musical. I really liked many parts of the piece. They were very clear and beautifully interpeted. Nevertheless, continue working and I am sure that your version will become even better (you know,... a few wrong notes, technically demanding passages, etc.) I think that, with the passage of time, a lot of "problems" will be solved. For me, time and experience with a piece always plays an important role on its progress. As you said, the first half should a bit more calm, especially on the opening bars and then when the first theme of the piece first appears. I actually can't understand what you mean when you say "organic", I'm not able to tell you my opinion about it...

Don't forget to post your new recording, when it's ready!

Keep on making music,
Evitaevita