Hi Kawai_cs,
First of all congratulations on playing such a fantastic piece! I love to listen to other people play the pieces that I have played, it gives me new thoughts and creates an atmosphere to give feedbacks.
I am going to ignore Brian for a moment... If you think you are getting stalked, call the Internet Helpline

(idk)
Here are my thoughts;
-I really like how you grouped your notes in fours, not threes. Your use of arms was good. I took a lot of time figuring it out.
-Even though you were filled with bunch of notes, you never forgot about the melody and the chord progressions. Also, you were able to bring the bass out, not just the top.
-Your pedaling was clear.
Now, to constructive criticism...

-I think you need to tune your piano. I have perfect pitch and it bothers me, sorry!!!
-I also think that you need to play from memory. You usually play from memory when you perform, and you should practice that when you are recording as well. Memorizing a piece also helps you practice on the go too.
-Measure 1: first note is the beginning of all the arpeggios! Everything blooms from there. Also, the first and the last notes are what the audience remembers the most. You need start without banging the key. (my personal opinion)
-Measure 23: More special there

Transition to 6th.
-Also in measure measure 58, there is a Neapolitan 6th chord, (special flat 2), so in my opinion you need to drastically change the color there.
-Every time you have a four octave arpeggio (instead of three) you might want to bring out the 3rd note of the 4 sixteenth notes. For example, in measure 16, you want to bring out the low E natural (beat 2&), D (beat 3&), and G (beat 4&). Just a suggestion, try that and see if you like it.
Once again, these are just suggestions, you don't have to do them. I'm not a teacher, I'm still a student
*-*
Natsu Ozawa
Bloomington, IN
PS: I don't agree with
Richardb, you are right. Learning the etude in 3 note chords first speeds up memorizing process and helps find out the most convenient hand positions to execute each arpeggio.
They give you bad habits of sticking in to bouncy rhythms, and you will lose your sense of pulse.
Anyway, Happy practicing!